A. Amato

Publication List Details

Period

1988 - 2009

Number

209

Co-Authors

Mean-field methods in duplication-innovation-loss models for the genomics of structural protein domains (2009)

Angelini, A., Amato, A., Bianconi, G., Bassetti, B., Lagomarsino, M. Cosentino

We present a combined mean-field and simulation approach to different models describing the dynamics of classes formed by elements that can appear, disappear or copy themselves. These models, related...

Pressure Induced Static Magnetic Order in Superconducting FeSe_1-x (2009)

Khasanov, R., Bendele, M., Amato, A., Conder, K., Elender, M., Keller, H., ...

The phase diagram of the recently discovered Fe-based high-temperature superconductors (HTS) share a common feature with cuprates and heavy fermions: the long-range antiferromagnetic order in the...

Coexistence of incommensurate magnetism and superconductivity in Fe_{1+y}Se_xTe_{1-x} (2009)

Khasanov, R., Bendele, M., Amato, A., Babkevich, P., Boothroyd, A. T., Cervellino, A., ...

We report an investigation into the superconducting and magnetic properties of Fe_{1+y}Se_{x}Te_{1-x} single crystals by magnetic susceptibility, muon spin rotation, and neutron diffraction. We find...

Spin dynamics in Heisenberg triangular antiferromagnets: A muSR study of LiCrO2 (2009)

Olariu, A., Mendels, P., Bert, F., Alexander, L. K., Mahajan, A. V., Hillier, A. D., ...

We report a muSR study of LiCrO2, which has a magnetic lattice made up of a stacking of triangular Heisenberg antiferromagnetic (Cr3+, S = 3/2) layers. A static magnetically ordered state is observed...

Interplay of Rare Earth and Iron magnetism in RFeAsO with R = La, Ce, Pr, and Sm: A muon spin relaxation study and symmetry analysis (2009)

Maeter, H., Luetkens, H., Pashkevich, Yu. G., Kwadrin, A., Khasanov, R., Amato, A., ...

We report zero field muon spin relaxation (muSR) measurements on RFeAsO with R = La, Ce, Pr, and Sm. We study the interaction of the FeAs and R (rare earth) electronic systems in the non...

Muon spin rotation and relaxation in the superconducting ferromagnet UCoGe (2009)

De Visser, A., Huy, N. T., Gasparini, A., De Nijs, D. E., Andreica, D., Baines, C., ...

We report zero-field muon spin rotation and relaxation measurements on the superconducting ferromagnet UCoGe. Weak itinerant ferromagnetic order is detected by a spontaneous muon spin precession...

Momentum-resolved superconducting gap in the bulk of Ba$_{1-x}$K$_{x}$Fe$_2$As$_2$ from combined ARPES and $\mu$SR measurements (2009)

Evtushinsky, D. V., Inosov, D. S., Zabolotnyy, V. B., Viazovska, M. S., Khasanov, R., Amato, A., ...

Here we present a calculation of the temperature-dependent London penetration depth, $\lambda(T)$, in Ba$_{1-x}$K$_{x}$Fe$_2$As$_2$ (BKFA) on the basis of the electronic band structure [1,2] and...

Superconductivity and Field-Induced Magnetism in SrFe_1.75Co_0.25As_2 (2009)

Khasanov, R., Maisuradze, A., Maeter, H., Kwadrin, A., Luetkens, H., Amato, A., ...

Using muon-spin rotation, we studied the in-plane (\lambda_ab) and the out of plane (\lambda_c) magnetic field penetration depth in SrFe_1.75Co_0.25As_2 (T_c=13.3 K). Both \lambda_ab(T) and...

Orbital and spin effects for the upper critical field in strongly disordered iron pnictide superconductors (2009)

Fuchs, G., Kozlova, N., Bartkowiak, M., Behr, G, Nenkov, K., ...

We report upper critical field, resistivity, and Hall data for disordered (As deficient) LaO_0.9F0.1FeAs_1-\delta in high fields up to 60 T. Due to the large linear initial slope of Bc2 near T_c the...

Probing the Ground State Properties of Iron-based Superconducting Pnictides and Related Systems by Muon-Spin Spectroscopy (2009)

Amato, A., Khasanov, R., Luetkens, H.

In this short review, we attempt to give a comprehensive discussion of studies performed to date by muon-spin spectroscopy (more precisely the relaxation and rotation technique, also know as \muSR...

Two-gap superconductivity in Ba_{1-x}K_xFe_2As_2 inferred from investigations of the magnetic penetration depth (2009)

Khasanov, R., Amato, A., Luetkens, H., Niedermayer, Ch., Sun, G. L., ...

Using muon-spin rotation, we studied the anisotropy of the magnetic-field penetration depth \gamma_\lambda=\lambda_c/\lambda_ab in an extensively characterized sample of superconducting...

Spin-glass state and long-range magnetic order in Pb(Fe1/2Nb1/2)O3 (2009)

Roessli, B., Amato, A., Gvasaliya, S. N., Lushnikov, S. G., Shaplygina, T. A.

We have investigated the magnetic ground-state of the multiferroic relaxor ferroelectric Pb(Fe$_{1/2}$Nb$_{1/2}$)O$_{3}$ with $\mu$SR spectroscopy and neutron scattering. We find that a transition to...

Muon-spin rotation study of the in-plane magnetic penetration depth of FeSe_0.85: evidence for nodeless superconductivity (2008)

Khasanov, R., Conder, K., Pomjakushina, E., Amato, A., Baines, C., Bukowski, Z., ...

The in-plane magnetic penetration depth \lambda_{ab} of the iron selenide superconductor with the nominal composition FeSe_0.85 was studied by means of muon-spin rotation. The measurements of...

Strong coupling between magnetic and structural order parameters in SrFe2As2 (2008)

Jesche, A., Caroca-Canales, N., Rosner, H., Borrmann, H., Ormeci, A., Kasinathan, D., ...

X-ray and Neutron diffraction as well as muon spin relaxation and M\"ossbauer experiments performed on SrFe$_2$As$_2$ polycrystalls confirm a sharp first order transition at $T_0 = 205$,K...

The electronic phase diagram of the LaO1-xFxFeAs superconductor (2008)

Luetkens, H., Kraken, M., Litterst, F. J., Dellmann, T., Klingeler, R., ...

The competition of magnetic order and superconductivity is a key element in the physics of all unconventional superconductors, e.g. in high-transition-temperature cuprates 1, heavy fermions 2 and...

Commensurate Spin Density Wave in LaOFeAs: A Local Probe Study (2008)

Luetkens, H., Klingeler, R., Hess, C., Litterst, F. J., Kraken, M., ...

We present a detailed study on the magnetic order in the undoped mother compound LaOFeAs of the recently discovered Fe-based superconductor LaO$_{1-x}$F$_x$FeAs. In particular, we present local probe...

Field and Temperature Dependence of the Superfluid Density in LaO_{1-x}F_xFeAs Superconductors: A Muon Spin Relaxation Study (2008)

Luetkens, H., Khasanov, R., Amato, A., Klingeler, R., Hellmann, I., ...

We present zero field and transverse field \muSR experiments on the recently discovered electron doped Fe-based superconductor LaO_{1-x}F_xFeAs. The zero field experiments on underdoped (x=0.075) and...

Performance of the INGV National Seismic Network from 1997 to 2007 (2008)

Amato, A.; Istituto Nazionale Di Geofisica E Vulcanologia, Sezione CNT, Roma, Italia, Mele, F.; Istituto Nazionale Di Geofisica E Vulcanologia, Sezione CNT, Roma, Italia

Seismic monitoring in Italy has strongly improved since the 1997 Umbria-Marche earthquake sequence. This has made the National Seismic Network (RSN) a powerful tool both to rapidly locate and...

Probing the vortex state in CaC$_6$ using transverse field muon spin rotation (2008)

Kanigel, A., Di Castro, D., Keren, A., Postorino, P., Rosenmann, D., Welp, U., ...

We report temperature and transverse field-dependent muon spin relaxation measurements in a c-axis oriented sample of the superconductor CaC$_{6}$. The results indicate a fully gapped Fermi surface...

Short-range magnetic ordering process for the triangular lattice compound NiGa2S4: a positive muon spin rotation and relaxation study (2008)

Yaouanc, A., De Reotier, P. Dalmas, Chapuis, Y., Marin, C., Lapertot, G., Cervellino, A., ...

We report a study of the triangular lattice Heisenberg magnet NiGa2S4 by the positive muon spin rotation and relaxation technique. We unravel three temperature regimes: (i) below T_c = 9.2(2) K a...

Muon spin rotation studies of spin dynamics at avoided level crossings in LiY0.998Ho0.002F4 (2007)

Graf, M. J., Lago, J., Lascialfari, A., Amato, A., Baines, C., Giblin, S. R., ...

We have studied the Ho3+ spin dynamics for LiY0.998Ho0.002F4 through the positive muon (mu+) transverse field depolarization rate lambda_TF as a function of temperature and magnetic field. We find...

Quantum Magnetism in the Paratacamite Family: Towards an Ideal Kagome Lattice (2007)

Mendels, P, Bert, F, De Vries, MA, Olariu, A, Harrison, A, Duc, F, ...

We report muon spin rotation measurements on the S=1/2 (Cu2+) paratacamite ZnxCu4-x(OH)6Cl2 family. Despite a Weiss temperature of ~ -300 K, the x = 1 compound is found to have no transition to a...

Muon spin rotation studies of spin dynamics at avoided level crossings in LiY0.998Ho0.002F4 (2007)

Graf, MJ, Lago, J, Lascialfari, A, Amato, A, Baines, C, Giblin, SR, ...

We have studied the Ho3+ spin dynamics for LiY0.998Ho0.002F4 via the positive muon (mu(+)) transverse field depolarization rate lambda(TF) as a function of temperature and magnetic field. We find...

Quantum magnetism in the paratacamite family: towards an ideal kagome lattice (2006)

Mendels, P., Bert, F., De Vries, M. A., Olariu, A., Harrison, A., Duc, F., ...

We report MuSR measurements on the S=1/2 (Cu2+) paratacamite Zn_xCu_{4-x}(OH)_6Cl_2 family. Despite a Weiss temperature of -300 K, the x=1 compound is found to have no transition to a magnetic frozen...

The subduction structure of the Northern Apennines: results from the RETREAT seismic deployment (2006)

Margheriti, L., Pondrelli, S., Piccinini, D., Piana Agostinetti, N., Giovani, L., Salimbeni, S., ...

The project Retreating-trench, extension, and accretion tectonics, RETREAT, is a multidisciplinary study of the Northern Apennines (earth.geology.yale.edu/RETREAT/), funded by the United States...

Ferromagnetic -spin glass transition induced by pressure in Gd$_2$Mo$_2$O$_7$ (2006)

Mirebeau, I., Apetrei, A., Goncharenko, I., Andreica, D., Bonville, P., Sanchez, J. P., ...

R$_2$Mo$_2$O$_7$ compounds show a ferromagnetic metal-insulator spin glass transition tuned by the radius of the rare earth ion R$^{3+}$. We have studied Gd$_2$Mo$_2$O$_7$ located on the verge of the...

Muon Spin Relaxation Studies of Superconductivity in a Crystalline Array of Weakly Coupled Metal Nanoparticles (2006)

Bono, D., Schnepf, A., Hartig, J., Schnöckel, H., Nieuwenhuys, G.J., Amato, A., ...

We report Muon Spin Relaxation studies in weak transverse fields of the superconductivity in the metal cluster compound,...

Muon Spin Relaxation Studies of Superconductivity in a Crystalline Array of Weakly Coupled Metal Nanoparticles (2006)

Bono, D., Schnepf, A., Hartig, J., Schnöckel, H., Nieuwenhuys, G. J., Amato, A., ...

We report Muon Spin Relaxation studies in weak transverse fields of the superconductivity in the metal cluster compound, Ga$\_{84}$[N(SiMe$\_{3}$)$\_{2}$]$\_{20}$-Li$\_{6}$Br$\_{2}$(thf)$\_{20}\cdot...

Evidence of Two Dimensionality in Quasi-One-Dimensional Cobalt Oxides (2006)

Sugiyama, J., Nozaki, H., Ikedo, Y., Mukai, K., Andreica, D., Amato, A., ...

The quasi-one-dimensional (Q1D) cobalt oxides A_{n+2}Co_{n+1}O{3n+3} (A = Ca, Sr, and Ba, n = 1-∞) were investigated by muon-spin spectroscopy under applied pressures of up to 1.1 GPa. The...

Direct evidence for a dynamical ground state in the highly frustrated Tb$_2$Sn$_2$O$_7$ pyrochlore (2006)

Bert, F., Mendels, P., Olariu, A., Blanchard, N., Collin, G., Amato, A., ...

MuSR experiments have been performed on powder sample of the "ordered spin ice" Tb$_2$Sn$_2$O$_7$ pyrochlore compound. At base temperature (T=35mK) the muon relaxation is found to be of dynamical...

Spin dynamics and magnetic order in magnetically frustrated Tb2Sn2O7 (2006)

De Reotier, P. Dalmas, Yaouanc, A., Keller, L., Cervellino, A., Roessli, B., Baines, C., ...

We report a study of the geometrically frustrated magnetic material Tb2Sn2O7 by the positive muon spin relaxation technique. No signature of a static magnetically ordered state is detected while...

Muon Spin Relaxation Studies of Superconductivity in a Crystalline Array of Weakly Coupled Metal Nanoparticles (2006)

Bono, D., Schnepf, A., Hartig, J., Schnöckel, H., Nieuwenhuys, G.J., Amato, A., ...

We report Muon Spin Relaxation studies in weak transverse fields of the superconductivity in the metal cluster compound,...

Muon Spin Relaxation Studies of Superconductivity in a Crystalline Array of Weakly Coupled Metal Nanoparticles (2006)

Bono, D., Schnepf, A., Hartig, J., Schnöckel, H., Nieuwenhuys, G.J., Amato, A., ...

We report Muon Spin Relaxation studies in weak transverse fields of the superconductivity in the metal cluster compound,...

Magnetic analog of the isotope effect in cuprates (2006)

Ofer, R, Bazalitsky, G, Kanigel, A, Keren, A, Auerbach, A, Lord, J S, ...

We present extensive magnetic measurements of the (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3Oy system with its four different families (x) having a Tcmax(x) variation of 28% and minimal structural changes. For...

Design Considerations for Double-Skin Facades in Hot and Humid Climates (2006)

Haase, M., Amato, A.

Thermal building simulations (TRNSYS) were linked to nodal airflow network simulations (COMIS) for a ventilated double-skin facade performance calculation and overall energy consumption for office...

Muon Spin Relaxation Studies of Superconductivity in a Crystalline Array of Weakly Coupled Metal Nanoparticles (2006)

Bono, D., Schnepf, A., Hartig, J., Schnöckel, H., Nieuwenhuys, G.J., Amato, A., ...

We report Muon Spin Relaxation studies in weak transverse fields of the superconductivity in the metal cluster compound,...

Design Considerations for Double-Skin Facades in Hot and Humid Climates (2006)

Haase, M., Amato, A.

Thermal building simulations (TRNSYS) were linked to nodal airflow network simulations (COMIS) for a ventilated double-skin facade performance calculation and overall energy consumption for office...

Studies of R2Ti2O7 (R=Gd and Yb); new results (2005)

De Reotier, P. Dalmas, Glazkov, V., Marin, C., Yaouanc, A., Gubbens, P. C. M., Sakarya, S., ...

Specific heat and muon spin rotation and relaxation data are presented for two geometrically frustrated systems: Gd2Ti2O7 which antiferromagnetically orders and Yb2Ti2O7 which presents dynamical...

Evidence for an antiferromagnetic component in the magnetic structure of ZrZn2 (2005)

De Reotier, P. Dalmas, Lapertot, G., Yaouanc, A., Gubbens, P. C. M., Sakarya, S., Amato, A.

Zero-field muon spin rotation experiments provide evidence for an antiferromagnetic component in the magnetic structure of the intermetallics ZrZn2.

Static magnetic order in metallic K$_{0.49}$CoO$_{2}$ (2005)

Sugiyama, J., Nozaki, H., Ikedo, Y., Mukai, K., Brewer, J. H., Ansaldo, E. J., ...

By means of muon spin spectroscopy, we have found that K$_{0.49}$CoO$_2$ crystals undergo successive magnetic transitions from a high-T paramagnetic state to a magnetic ordered state below 60 K and...

Evidence for a two component magnetic response in UPt3 (2005)

Yaouanc, A., De Reotier, P. Dalmas, Gygax, F. N., Schenck, A., Amato, A., Baines, C., ...

The magnetic response of the heavy fermion superconductor UPt_3 has been investigated on a microscopic scale by muon Knight shift studies. Two distinct and isotropic Knight shifts have been found for...

Collecting, Digitizing, and Distributing Historical Seismological Data (2005)

Michelini, A., De Simoni, B., Amato, A., Boschi, E.

The digital preservation of the unique seismological heritage consisting of historical seismograms and earthquake bulletins, and of related documentation (e.g., observatory logbooks, station books,...

A new apparatus for deep patterning of beam sensitive targets by means of high-energy ion beam (2005)

Rovelli, A., Amato, A., Botta, D., Chiodoni, A., Gerbaldo, R., Ghigo, G., ...

The paper reports on a high precision equipment designed to modify over 3-dimensions (3D) by means of high-energy gold ions the local properties of thin and thick films. A target-moving system aimed...

Muon Spin Relaxation Measurements on Zirconia Samples (2005)

Degueldre, C., Amato, A., Bart, G.

Although of primary importance in the mechanistic understanding of Zircaloy hydriding, practically nothing is known on the transport properties of hydrogen in zirconia. In this frame the muon, which...

Series of Bulk Magnetic Phase Transitions in NaxCoO2: a muSR study (2005)

Mendels, P., Bono, D., Bobroff, J., Collin, G., Colson, D., Blanchard, N., ...

Using muon spin rotation, well-defined bulk ~ 100% magnetic phases in NaxCoO2 are revealed. A novel magnetic phase is detected for x = 0.85 with the highest transition temperature ever observed for x...

On the Coexistence Magnetism/Superconductivity in the Heavy-Fermion Superconductor CePt$_3$Si (2004)

Amato, A., Bauer, E., Baines, C.

The interplay between magnetism and superconductivity in the newly discovered heavy-fermion superconductor CePt$_3$Si has been investigated using the zero-field $\mu$SR technique. The $\mu$SR data...

$\mu$SR study of the quantum dynamics in the frustrated $S=3/2$ kagome bilayers (2004)

Bono, David, Mendels, P., Collin, G., Blanchard, N., Bert, F., Amato, A., ...

We present $\mu$SR experiments in the $S=3/2$ kagome bilayer compound Ba$_{2}$Sn$_{2}$ZnGa$_{10-7p}$Cr$_{7p}$O$_{22}$ (BSZCGO$(p)$) and compare it to the isostructural SrCr$_{9p}$Ga$_{12-9p}$O$_{19}$...

Weak magnetism phenomena in heavy-fermion superconductors: selected $\mu$SR studies (2004)

Amato, A., Graf, M. J., De Visser, A., Amitsuka, H., Andreica, D., Schenck, A.

The behavior of the so-called weak moment antiferromagnetic states, observed in the heavy-fermion superconductors UPt$_3$ and URu$_2$Si$_2$, is discussed in view of recent $\mu$SR results obtained as...

Unconventional superconductivity and magnetism in $\rm CePt_3Si_{1-x}Ge_x$ (2004)

Bauer, E., Hilscher, G., Michor, H., Sieberer, M., Scheidt, E. W., Gribanov, A., ...

$\rm CePt_3Si$ is a novel ternary compound exhibiting antiferromagnetic order at $T_N \approx 2.2$ K and superconductivity (SC) at $T_c \approx 0.75$ K. Large values of $H_{c2}' \approx -8.5$ T/K and...

Complex Normal Faulting in the Apennines Thrust-and-Fold Belt: The 1997 Seismic sequence in Central Italy (2004)

Chiaraluce, L., Amato, A., Cocco, M., Chiarabba, C., Selvaggi, G., Di Bona, M., ...

A long sequence of moderate-magnitude earthquakes (5 M 6) struck central Italy in September and October 1997. At the end of the sequence a year later, the seismogenic area extends for about 60 km...

Effect of two gaps on the flux lattice internal field distribution: evidence of two length scales from muSR in Mg1-xAlxB2 (2004)

Serventi, S., Allodi, G., De Renzi, R., Guidi, G., Romanò, L., Manfrinetti, P., ...

We have measured the transverse field muon spin precession in the flux lattice (FL) state of the two gap superconductor MgB2 and of the electron doped compounds Mg1-xAlxB2 in magnetic fields up to...

$\mu$SR study of the quantum dynamics in the frustrated $S=\frac{3}{2}$ kagomé bilayers (2004)

Bono, David, Mendels, P., Collin, G., Blanchard, N., Bert, F., Amato, A., ...

We present $\mu$SR experiments in the $S=\frac{3}{2}$ kagomé bilayer compound Ba$_{2}$Sn$_{2}$ZnGa$_{10-7p}$Cr$_{7p}$O$_{22}$ (BSZCGO$(p)$) and compare it to the isostructural...

$\mu$SR study of the quantum dynamics in the frustrated $S=\frac{3}{2}$ kagomé bilayers (2004)

Bono, David, Mendels, P., Collin, G., Blanchard, N., Bert, F., Amato, A., ...

We present $\mu$SR experiments in the $S=\frac{3}{2}$ kagomé bilayer compound Ba$_{2}$Sn$_{2}$ZnGa$_{10-7p}$Cr$_{7p}$O$_{22}$ (BSZCGO$(p)$) and compare it to the isostructural...

$\mu$SR study of the quantum dynamics in the frustrated $S=\frac{3}{2}$ kagomé bilayers (2004)

Bono, David, Mendels, P., Collin, G., Blanchard, N., Bert, F., Amato, A., ...

We present $\mu$SR experiments in the $S=\frac{3}{2}$ kagomé bilayer compound Ba$_{2}$Sn$_{2}$ZnGa$_{10-7p}$Cr$_{7p}$O$_{22}$ (BSZCGO$(p)$) and compare it to the isostructural...

Carbon dioxide Earth degassing and seismogenesis in central and southern Italy (2004)

Chiodini, G., Cardellini, C., Amato, A., Boschi, E., Caliro, S., Frondini, F., ...

We present the first regional map of CO2 Earth degassing from a large area (most of central and south Italy) derived from the carbon of deep provenance dissolved in the main springs of the region....

An improved stress map for Italy and surrounding regions (central Mediterranean) (2004)

Montone, P., Mariucci, M. T., Pondrelli, S., Amato, A.

We present an updated present-day stress data compilation for the Italian region and discuss it with respect to the geodynamic setting and the seismicity of the area. We collected and analyzed 190...

$\mu$SR study of the quantum dynamics in the frustrated $S=\frac{3}{2}$ kagomé bilayers (2004)

Bono, David, Mendels, P., Collin, G., Blanchard, N., Bert, F., Amato, A., ...

We present $\mu$SR experiments in the $S=\frac{3}{2}$ kagomé bilayer compound Ba$_{2}$Sn$_{2}$ZnGa$_{10-7p}$Cr$_{7p}$O$_{22}$ (BSZCGO$(p)$) and compare it to the isostructural...

Technology enhanced construction technology teaching (2004)

Amato, A, Thilakaratne, R, Henri, J, Trinidad, SG

Design studio has been the heart of architectural education since late 18th C and thus students often consider other courses as peripheral to studio. In a majority of schools, the nature of the...

Muon Spin Relaxation Measurements in Na_xCoO_2*yH_2O (2003)

Kanigel, A., Keren, A., Patlagan, L., Chashka, K. B., Fisher, B., King, P., ...

Using the transverse field muon spin relaxation technique we measure the temperature dependence of the magnetic field penetration depth $\lambda$, in the Na$_{x}$CoO$_{2}\cdot y$H$_{2}$O system. We...

Onset of antiferromagnetism in UPt_{3} via Th-substitution studied by muon spin spectroscopy (2003)

Graf, M. J., De Visser, A., Opeil, C. P., Cooley, J. C., Smith, J. L., Amato, A., ...

Muon spin spectroscopy has been used to study in detail the onset of large-moment antiferromagnetism (LMAF) in UPt_{3} as induced by Th substitution. Zero-field experiments have been carried out on a...

Inhomogeneous spin order in the magnetic phase of electron-doped high-T§c superconductors. (2003)

Baabe, D., Klauss, H.H., Mienert, D., Birke, M., Adelmann, P., Hitti, B., ...

Proc.of the 9th Internat.Conf.on Muon Spin Rotation, Relaxation and Resonance (MuSR), Williamsburg, Va., June 3-7, 2002

Universal superconducting and magnetic properties of the (CaLa)(BaLa)CuO system: a MuSR investigation (2002)

Keren, A., Kanigel, A., Lord, J., Amato, A.

The (Ca_xLa_(1-x))(Ba_(1.75-x)La_(0.25+x))Cu_(3)O_(y) system is ideal for testing theories of high temperature superconductivity, since nearly the full range of doping is controlled by y, and...

Along-depth stress rotations and active faults: an example in a 5-km deep well of Southern Italy (2002)

Mariucci, M. T., Amato, A., Gambini, R., Giorgioni, M., Montone, P.

We have analyzed a 1500 m section at 3.9 to 5.4 km depth in a well of the southern Apennines, in order to better characterize the local active stress field and its correlation with tectonic...

Magnetic fluctuations and superconductivity in YbPd$_2$Sn (2002)

Amato, A., Roessli, B., Fischer, P., Bernhoeft, N., Stunault, A., Baines, C., ...

We report muon spin relaxation and inelastic neutron measurements on the Heusler system YbPd$_2$Sn. Localised anisotropic and quasi-elastic Yb magnetic fluctuations are observed below $T = 150$K....

Genomic organization of the dysferlin gene and novel mutations in Miyoshi myopathy. (2001)

Aoki, M., Liu, J., Richard, I., Bashir, R., Britton, S., Keers, S. M., ...

OBJECTIVE: Mutations in the skeletal muscle gene dysferlin cause two autosomal recessive forms of muscular dystrophy: Miyoshi myopathy (MM) and limb girdle muscular dystrophy type 2B (LGMD2B). The...

Staggered magnetization, critical behavior and weak ferromagnetic propert ies of LaMnO$_3$ by muon spin rotation (2000)

Guidi, M. Cestelli, Allodi, G., De Renzi, R., Guidi, G., Hennion, M., Pinsard, L., ...

We present a study of a microtwinned single crystal of LaMnO$_3$ by means of implanted muons. Two muon stopping sites are identified from the symmetry of the internal field in the ordered phase. The...

Spin-Glass State in $\rm CuGa_2O_4$ (2000)

Petrakovskii, G. A., Aleksandrov, K. S., Bezmaternikh, L. N., Aplesnin, S. S., Roessli, B., Semadeni, F., ...

Magnetic susceptibility, magnetization, specific heat and positive muon spin relaxation (\musr) measurements have been used to characterize the magnetic ground-state of the spinel compound $\rm...

Magnetic Phase Transitions in the double spin-chains compound $\rm LiCu_2O_2$ (2000)

Roessli, B., Staub, U., Amato, A., Herlach, D., Pattison, P., Sablina, K., ...

We report high-resolution x-ray diffraction, muon-spin-rotation spectroscopic and specific heat measurements in the double spin-chains compound $\rm LiCu_2O_2$. The x-ray diffraction results show...

Macroscopic and Local Magnetic Moments in Si-doped CuGeO$_3$ with Neutron and $\mu$SR Studies (2000)

Semadeni, F., Amato, A., Roessli, B., Böni, P., Baines, C., Masuda, T., ...

The temperature-concentration phase diagram of the Si-doped spin-Peierls compound CuGeO$_{3}$ is investigated by means of neutron scattering and muon spin rotation spectroscopy in order to determine...

Magnetic quantum critical point and superconductivity in UPt3 doped with Pd (2000)

De Visser, A., Graf, M. J., Estrela, P., Amato, A., Baines, C., Andreica, D., ...

Transverse-field muon spin relaxation measurements have been carried out on the heavy-fermion superconductor UPt3 doped with small amounts of Pd. We find that the critical Pd concentration for the...

Fault plane solutions of crustal earthquakes in Southern Italy (1988-1995): seismotectonic implications (2000)

Frepoli, A., Amato, A.

The Southern Apennines and the Sicilian-Calabrian regions belong to the complex geodynamic Central Mediterranean area, which is dominated by the NNW-SSE convergence of the European and African plates...

Fault plane solutions of crustal earthquakes in Southern Italy (1988-1995): seismotectonic implications (2000)

Frepoli, A.; Istituto Nazionale Di Geofisica, Roma, Italy, Amato, A.; Istituto Nazionale Di Geofisica, Roma, Italy

The Southern Apennines and the Sicilian-Calabrian regions belong to the complex geodynamic Central Mediterranean area, which is dominated by the NNW-SSE convergence of the European and African plates...

Evidence for a two component magnetic response in UPt3 (2000)

Yaouanc, A., De Reotier, P. Dalmas, Gygax, F. N., Schenck, A., Amato, A., Baines, C., ...

The magnetic response of the heavy fermion superconductor UPt_3 has been investigated on a microscopic scale by muon Knight shift studies. Two distinct and isotropic Knight shifts have been found for...

Evidence for a two component magnetic response in UPt3 (2000)

Yaouanc, A., De Reotier, P. Dalmas, Gygax, F. N., Schenck, A., Amato, A., Baines, C., ...

The magnetic response of the heavy fermion superconductor UPt_3 has been investigated on a microscopic scale by muon Knight shift studies. Two distinct and isotropic Knight shifts have been found for...

Evidence for a two component magnetic response in UPt3 (2000)

Yaouanc, A., De Reotier, P. Dalmas, Gygax, F. N., Schenck, A., Amato, A., Baines, C., ...

The magnetic response of the heavy fermion superconductor UPt_3 has been investigated on a microscopic scale by muon Knight shift studies. Two distinct and isotropic Knight shifts have been found for...

Muon localization site in U(Pt,Pd)(3) (2000)

Schenck, A., Keizer, R. J., De Visser, A., Amato, A., Andreica, D., Gygax, F. N., ...

The angular and temperature (10-250 K) variation of the Knight shift of single-crystalline U(Pt0.95Pd0.05)(3) has been measured in transverse-field (B = 0.6T) mu SR experiments. By analyzing the...

Magnetic quantum critical point and superconductivity in UPt3 doped with Pd (2000)

De Visser, A., Graf, M. J., Estrela, Pedro, Amato, A., Baines, C., Andreica, D., ...

Transverse-field muon spin relaxation measurements have been carried out on the heavy-fermion superconductor UPt3 doped with small amounts of Pd. We find that the critical Pd concentration for the...

Muon localization site in U(Pt,Pd)3 (1999)

Schenck, A., Keizer, R. J., De Visser, A., Amato, A., Andreica, D., Gygax, F. N., ...

The angular and temperature (10-250 K) variation of the Knight shift of single-crystalline U(Pt0.95Pd0.05)3 has been measured in transverse field (B=0.6 T) mSR experiments. By analysing the...

Magnetism in heavy-fermion U(Pt,Pd)3 studied by mSR (1999)

Keizer, R. J., De Visser, A., Menovsky, A. A., Franse, J. J. M., Amato, A., Gygax, F. N., ...

We report mSR experiments carried out on a series of heavy-electron pseudobinary compounds U(Pt1-xPdx)3 (x

Recent tectonic evolution and present stress in the Northern Apennines (Italy) (1999)

Mariucci, M. T., Amato, A., Montone, P.

The present-day stress field and its recent tectonic evolution in the Northern Apennines are reconstructed from borehole breakout analysis and focal mechanisms of crustal earthquakes and through the...

Muon Spin Relaxation and Nonmagnetic Kondo State in PrInAg_2 (1998)

MacLaughlin, D. E., Heffner, R. H., Nieuwenhuys, G. J., Canfield, P. C., Amato, A., Baines, C., ...

Muon spin relaxation experiments have been carried out in the Kondo compound PrInAg_2. The zero-field muon relaxation rate is found to be independent of temperature between 0.1 and 10 K, which rules...

Crustal and deep seismicity in Italy (30 years after) (1997)

Amato, A., Chiarabba, C., Selvaggi, G.

The first modern studies of seismicity in Italy date back to the late 60's and early 70's. Although with a sparse seismic network available and only a few telemetered short-period stations,...

Crustal and deep seismicity in Italy (30 years after) (1997)

Amato, A.; Istituto Nazionale Di Geofisica, Roma, Italy, Chiarabba, C.; Istituto Nazionale Di Geofisica, Roma, Italy, Selvaggi, G.; Istituto Nazionale Di Geofisica, Roma, Italy

The first modern studies of seismicity in Italy date back to the late 60's and early 70's. Although with a sparse seismic network available and only a few telemetered short-period stations,...

Crustal stress regime in Italy (1997)

Montone, P., Amato, A., Frepoli, A., Mariucci, M. T., Cesaro, M.

In order to obtain a reliable map of the present-day stress field in Italy, needed to better understand the active tectonic processes and to contribute to the assessment of seismic hazard, in 1992 we...

Seismic anisotropy: an original tool to understand the geodynamic evolution of the Italian peninsula (1997)

Margheriti, L., Nostro, C., Amato, A., Cocco, M.

Anisotropy is a common property of the Earth's crust and the upper mantle; it is related to the strain field of the medium and therefore to geodynamics. In this paper we describe the different...

Present-day stress field and active tectonics in (1997)

Amato, A.; Istituto Nazionale Di Geofisica E Vulcanologia, Sezione CNT, Roma, Italia, Montone, P.; Istituto Nazionale Di Geofisica E Vulcanologia, Sezione Roma1, Roma, Italia

A systematic collection of present-day stress directions has allowed us to gain new insights into the recent tectonic evolution of the Italian Peninsula. Horizontal stress directions from breakouts...

Crustal velocity structure of the Apennines (Italy) from P-wave travel time tomography (1996)

Chiarabba, C., Amato, A.

In this paper we provide P-wave velocity images of the crust underneath the Apennines (Italy), focusing on the lower crustal structure and the Moho topography. We inverted P-wave arrival times of...

Crustal velocity structure of the Apennines (Italy) from P-wave travel time tomography (1996)

Chiarabba, C.; Istituto Nazionale Di Geofisica, Roma, Italy, Amato, A.; Istituto Nazionale Di Geofisica, Roma, Italy

In this paper we provide P-wave velocity images of the crust underneath the Apennines (Italy), focusing on the lower crustal structure and the Moho topography. We inverted P-wave arrival times of...

State of Stress in Southern Italy from borehole breakout and focal mechanism data (1995)

Amato, A.; Istituto Nazionale Di Geofisica E Vulcanologia, Sezione CNT, Roma, Italia, Montone, P.; Istituto Nazionale Di Geofisica E Vulcanologia, Sezione Roma1, Roma, Italia, Cesaro, M.; AGIP SpA, Milano

We present new wellbore breakout data from oil exploration wells drilled in southern Peninsular Italy, from the Tyrrhenian shelf through the Apenninic mountain belt and foredeep, eastward to the...

Main shock and aftershocks of the December 13, 1990, Eastern Sicily earthquake (1995)

Amato, A., Azzara, R., Basili, A., Chiarabba, C., Cocco, M., Di Bona, M., ...

n this paper we describe the location and the fault plane solution of the December 13, 1990, Eastern Sicily earthquake (ML = 5.4), and of its aftershock sequence. Because the main shock location is...

From tomographic images to fault heterogeneities (1994)

Chiarabba, C., Amato, A.

Local Earthquake Tomography (LET) is a useful tool for imaging lateral heterogeneities in the upper crust. The pattern of P- and S-wave velocity anomalies, in relation to the seismicity distribution...

From tomographic images to fault heterogeneities (1994)

Chiarabba, C.; Istituto Nazionale Di Geofisica, Roma, Italy, Amato, A.; Istituto Nazionale Di Geofisica, Roma, Italy

Local Earthquake Tomography (LET) is a useful tool for imaging lateral heterogeneities in the upper crust. The pattern of P- and S-wave velocity anomalies, in relation to the seismicity distribution...

Large teleseismic P-wave residuals observed at the Alban Hills volcano, Central Italy (1994)

Cimini, G. B., Chiarabba, C., Amato, A., Mahadeva Iyer, H.

We collected teleseismic waveforms from a digital microseismic network deployed by the Istituto Nazionale di Geofisica (ING) in collaboration with the U.S. Geological Survey (USGS), on the Alban...

TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF MAGNETIC CORRELATIONS IN THE HEAVY FERMION COMPOUND CeCu6 (1988)

Regnault, L., Erkelens, W., Rossat-Mignod, J., Jacoud, J., Flouquet, J., Mignot, J., ...

Inelastic neutron scattering experiments have been performed on the heavy fermion compound CeCu6 at very low temperatures (T >≈ 20 mK) and under magnetic fields up to 50 kOe. The analysis of...

TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF MAGNETIC CORRELATIONS IN THE HEAVY FERMION COMPOUND CeCu6 (1988)

Regnault, L., Erkelens, W., Rossat-Mignod, J., Jacoud, J., Flouquet, J., Mignot, J., ...

Inelastic neutron scattering experiments have been performed on the heavy fermion compound CeCu6 at very low temperatures (T >≈ 20 mK) and under magnetic fields up to 50 kOe. The analysis of...

TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF MAGNETIC CORRELATIONS IN THE HEAVY FERMION COMPOUND CeCu6 (1988)

Regnault, L., Erkelens, W., Rossat-Mignod, J., Jacoud, J., Flouquet, J., Mignot, J., ...

Inelastic neutron scattering experiments have been performed on the heavy fermion compound CeCu6 at very low temperatures (T >≈ 20 mK) and under magnetic fields up to 50 kOe. The analysis of...

Counter-transport of potassium by the glutamate uptake carrier in glial cells isolated from the tiger salamander retina.

Amato, A, Barbour, B, Szatkowski, M, Attwell, D

1. To investigate the transport of potassium on the glutamate uptake carrier, the glutamate uptake current in isolated retinal Müller cells was monitored by whole-cell clamping, while measuring...

Proton sensitivity of the GABA(A) receptor is associated with the receptor subunit composition.

Krishek, B J, Amato, A, Connolly, C N, Moss, S J, Smart, T G

1. Modulation of GABA(A) receptors by external H(+) was examined in cultured rat sympathetic neurones, and in Xenopus laevis oocytes and human embryonic kidney (HEK) cells expressing recombinant...

Counter-transport of potassium by the glutamate uptake carrier in glial cells isolated from the tiger salamander retina.

Amato, A, Barbour, B, Szatkowski, M, Attwell, D

1. To investigate the transport of potassium on the glutamate uptake carrier, the glutamate uptake current in isolated retinal Müller cells was monitored by whole-cell clamping, while measuring...

Proton sensitivity of the GABA(A) receptor is associated with the receptor subunit composition.

Krishek, B J, Amato, A, Connolly, C N, Moss, S J, Smart, T G

1. Modulation of GABA(A) receptors by external H(+) was examined in cultured rat sympathetic neurones, and in Xenopus laevis oocytes and human embryonic kidney (HEK) cells expressing recombinant...