R. Caciuffo

Publication List Details

Period

1984 - 2008

Number

98

Co-Authors

Inelastic neutron scattering investigations of molecular nanomagnets (2008)

Amoretti, G, Caciuffo, R, Carretta, S, Guidi, T, Magnani, N, Santini, P

Inelastic neutron scattering, probing the temporal spin-spin correlation at the microscopic scale, is a powerful technique to study the magnetic behaviour of molecular nanomagnets. Experiments at...

Resonant x-ray scattering study of NpRhGa_5 and NpCoGa_5 (2007)

Detlefs, B., Wilkins, S. B., Caciuffo, R., Paixão, J. A., Kaneko, K., Honda, F., ...

We report a resonant x-ray scattering (RXS) study of antiferromagnetic neptunium compounds NpCoGa_5 and NpRhGa_5 at the Np M_4 and Ga K-edges. Large resonant signals of magnetic dipole character are...

Magnetic Excitations in NpCoGa5 (2007)

Magnani, N., Hiess, A., Caciuffo, R., Colineau, E., Wastin, F., Rebizant, J., ...

We report the results of inelastic neutron scattering experiments on NpCoGa$_{5}$, an isostructural analogue of the PuCoGa$_{5}$ superconductor. Two energy scales characterize the magnetic response...

Triple-q octupolar ordering in NpO_2 (2007)

Paixao, J. A., Detlefs, C., Longfield, M. J., Caciuffo, R., Santini, P., Bernhoeft, N., ...

We report the results of resonant X-ray scattering experiments performed at the Np M_4,5 edges in NpO_2. Below T_0 = 25 K, the development of long-range order of Np electric quadrupoles is revealed...

Static and dynamic magnetic properties of an [Fe13] cluster (2006)

Van Slageren, J., Rosa, P., Caneschi, A., Sessoli, R., Casellas, H., Rakitin, Y. V., ...

The static and dynamic magnetic properties of an [Fe-13] cluster were investigated using several experimental techniques. The cluster crystallizes in a cubic space group, but careful investigation of...

Resonant X-ray Scattering Study of Magnetic and Electric-quadrupole Order in U$_{0.75}$Np$_{0.25}$O$_2$ (2005)

Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...

We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \\unpo. Earlier neutron diffraction and M\\\"{o}ssbauer studies had shown the...

Direct observation of electric-quadrupolar order in UO$_{2}$ (2005)

Wilkins, S. B., Caciuffo, R., Detlefs, C., Rebizant, J., Colineau, E., Wastin, F., ...

We report direct experimental evidence for long-range antiferro ordering of the electric-quadrupole moments on the U ions. Resonant x-ray scattering experiments at the uranium $M_{4}$ absorption edge...

Spin dynamics of heterometallic Cr7M wheels (M = Mn, Zn, Ni) probed by inelastic neutron scattering (2004)

Caciuffo, R., Guidi, T., Amoretti, G., Carretta, S., Liviotti, E., Santini, P., ...

Inelastic neutron scattering has been applied to the study of the spin dynamics of Cr-based antiferromagnetic octanuclear rings where a finite total spin of the ground state is obtained by...

A perturbative approach to J mixing in f-electron systems: Application to actinide dioxides (2004)

Magnani, N., Santini, P., Amoretti, G., Caciuffo, R.

We present a perturbative model for crystal-field calculations, which keeps into account the possible mixing of states labelled by different quantum number J. Analytical J-mixing results are obtained...

Enhancement of rare-earth--transition-metal exchange interaction in Pr$_{2}$Fe$_{17}$ probed by inelastic neutron scattering (2004)

Magnani, N., Carretta, S., Amoretti, G., Pareti, L., Paoluzi, A., Caciuffo, R., ...

The fundamental magnetic interactions of Pr$_{2}$Fe$_{17}$ are studied by inelastic neutron scattering and anisotropy field measurements. Data analysis confirms the presence of three magnetically...

Resonant X-ray Scattering Study of Magnetic and Electric-quadrupole Order in U$_{0.75}$Np$_{0.25}$O$_2$ (2004)

Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...

We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \unpo. Earlier neutron diffraction and M\"{o}ssbauer studies had shown the presence...

Quantum-magneto oscillations in a supramolecular Mn(II)-[3 x 3] grid (2004)

Waldmann, O., Carretta, S., Santini, P., Koch, R., Jansen, A. G. M., Amoretti, G., ...

The magnetic grid molecule Mn(II)-[3 x 3] has been studied by high-field torque magnetometry at 3He temperatures. At fields above 5 T, the torque vs. field curves exhibit an unprecedented oscillatory...

Inelastic neutron scattering study of magnetic excitations in uranium phosphates (2004)

Magnani, N., Amoretti, G., Blaise, A., Caciuffo, R., Dacheux, N., Genet, M., ...

The results of inelastic neutron scattering experiments performed on the compounds U1−xThx(UO2)(PO4)2 (x=0,0.5) and U2O(PO4)2 are presented. The partial substitution of uranium with thorium in...

Resonant X-ray Scattering Study of Magnetic and Electric-quadrupole Order in U$_{0.75}$Np$_{0.25}$O$_2$ (2004)

Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...

We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \\unpo. Earlier neutron diffraction and M\\\"{o}ssbauer studies had shown the...

Inelastic neutron scattering study of magnetic excitations in uranium phosphates (2004)

Magnani, N., Amoretti, G., Blaise, A., Caciuffo, R., Dacheux, N., Genet, M., ...

The results of inelastic neutron scattering experiments performed on the compounds U1−xThx(UO2)(PO4)2 (x=0,0.5) and U2O(PO4)2 are presented. The partial substitution of uranium with thorium in...

Resonant X-ray Scattering Study of Magnetic and Electric-quadrupole Order in U$_{0.75}$Np$_{0.25}$O$_2$ (2004)

Wilkins, S. B., Paxiao, J. A., Caciuffo, R., Javorsky, P., Wastin, F., Rebizant, J., ...

We have used element specific X-ray resonant scattering to investigate the M edge resonances in a single crystal of \\unpo. Earlier neutron diffraction and M\\\"{o}ssbauer studies had shown the...

Quantum magneto-oscillations in a supramolecular Mn(II)-[3x3] grid (2004)

Waldmann, O., Carretta, S., Santini, P., Koch, R., Jansen, A. G. M., Amoretti, G., ...

The magnetic grid molecule Mn(II)-[3x3] has been studied by high-field torque magnetometry at He-3 temperatures. At fields above 5 T, the torque versus field curves exhibit an unprecedented...

Level crossing in a molecular Cr8 ring (2004)

Affronte, M., Guidi, T., Caciuffo, R., Carretta, S., Amoretti, G., Hinderer, J., ...

The heat capacity of a molecular Cr-8 ring was measured as a function of temperature and magnetic field in order to follow the evolution of the Schottky anomaly through the first (S = 0 to \1, - I >)...

Macroscopic evidence of quantum coherent oscillations of the total spin in the Mn-[3x3] molecular nanomagnet (2003)

Carretta, S., Santini, P., Liviotti, E., Magnani, N., Caciuffo, R., Guidi, T., ...

Molecular nanomagnets, besides promising to open new frontiers in technology, have attracted huge interest in the scientific community because they can exhibit the phenomenon known as quantum...

Field-induced magnetic anisotropy in La0.7Sr0.3CoO3 (2003)

Mira, J., Rivas, J., Vazquez, M., Ibarra, M. R., Caciuffo, R., Rodriguez, M. A. Senaris

Magnetic anisotropy has been measured for the ferromagnetic La0.7Sr0.3CoO3 perovskite from an analysis of the high-field part of the magnetization vs. field curves, i.e., the magnetic saturation...

Triple-q octupolar ordering in NpO_2 (2002)

Paixao, J. A., Detlefs, C., Longfield, M. J., Caciuffo, R., Santini, P., Bernhoeft, N., ...

We report the results of resonant X-ray scattering experiments performed at the Np M_4,5 edges in NpO_2. Below T_0 = 25 K, the development of long-range order of Np electric quadrupoles is revealed...

Observation of an incoherent thermally activated proton hopping process in calix-[4]-arene by means of anelastic spectroscopy (2002)

Paolone, A., Cantelli, R., Caciuffo, R., Arduini, A.

The anelastic spectrum of calix[4]arene was measured at two different vibrational frequencies. Three thermally activated peaks were detected. The lowest temperature peak can be described considering...

Structural transformation induced by magnetic field and colossal magnetoresistance response above 313 K in MnAs (2002)

Mira, J., Rivadulla, F., Rivas, J., Fondado, A., Caciuffo, R., Carsughi, F., ...

MnAs exhibits a first-order phase transition from a ferromagnetic, high-spin metal NiAs-type hexagonal phase to a paramagnetic, lower-spin insulator MnP-type orthorhombic phase at T_C = 313 K. Here,...

Resonant x-ray scattering study of magnetic and orbital order in KCuF3 (2002)

Caciuffo, R., Paolasini, L., Sollier, A., Ghigna, P., Pavarini, E., ...

We present the results of resonant x-ray scattering experiments on KCuF3. Structurally forbidden reflections, corresponding to magnetic and 3d-orbital long-range order, have been observed. Integrated...

Resonant x-ray scattering study of magnetic and orbital order in KCuF3 (2002)

Caciuffo, R., Paolasini, L., Sollier, A., Ghigna, P., Pavarini, E., ...

We present the results of resonant x-ray scattering experiments on KCuF3. Structurally forbidden reflections, corresponding to magnetic and 3d-orbital long-range order, have been observed. Integrated...

Resonant x-ray scattering study of magnetic and orbital order in KCuF3 (2002)

Caciuffo, R., Paolasini, L., Sollier, A., Ghigna, P., Pavarini, E., ...

We present the results of resonant x-ray scattering experiments on KCuF3. Structurally forbidden reflections, corresponding to magnetic and 3d-orbital long-range order, have been observed. Integrated...

Inelastic neutron scattering spectroscopy of C-60@calix[8]arene (2000)

Paci, B, Caciuffo, R, Arduini, A, Zerbetto, F, DELEUZE, Michael

The vibrational dynamics of the p-tert-butylcalix[8]arene and the 1:1 inclusion complex C-60 @p-tert-butylcalix[8]arene are investigated by a combination of inelastic neutron scattering (INS) and MM3...

Inelastic neutron scattering spectroscopy of C-60@calix[8]arene (2000)

Paci, B, Caciuffo, R, Arduini, A, Zerbetto, F, DELEUZE, Michael

The vibrational dynamics of the p-tert-butylcalix[8]arene and the 1:1 inclusion complex C-60 @p-tert-butylcalix[8]arene are investigated by a combination of inelastic neutron scattering (INS) and MM3...

Nuclear motions of an inclusion complex of calix[4]arene (1998)

Paci, B, Caciuffo, R, Tomkinson, J, Ugozzoli, F, Zerbetto, F, DELEUZE, Michael

The 2:1 inclusion complex of p-tert-butylcalix[4]arene and p-xylene was investigated by a combination of inelastic neutron scattering, WS, experiments and MM3 molecular mechanics calculations. Since...

Nuclear motions of an inclusion complex of calix[4]arene (1998)

Paci, B, Caciuffo, R, Tomkinson, J, Ugozzoli, F, Zerbetto, F, DELEUZE, Michael

The 2:1 inclusion complex of p-tert-butylcalix[4]arene and p-xylene was investigated by a combination of inelastic neutron scattering, WS, experiments and MM3 molecular mechanics calculations. Since...

Neutron scattering investigations of high-Tc superconductors (1996)

Amoretti, G, Caciuffo, R, Moze, O

in High Temperature Superconductivity, Models and Measurements, Ed M Acquarone (World Scientific) p533 (1996)

High energy neutron spectroscopy investigations of intermultiplet transitions in Sm-Fe supermagnets (1992)

Moze, O, Caciuffo, R, Amoretti, G, Coly, J M D, Li, H S, Hu, B P

Proceedings of the VII International Symposium of Magnetic Anistropy and Coercivity in Rare-earth transition metal alloys (1992) (Canberra,Australia, July 1992)

Generalized vibrational density of states of the metallic glass Fe§4§0Ni§4§0B§2§0 determined by neutron inelastic scattering. (1989)

Caciuffo, R., Francescangeli, O., Melone, S., Stefanon, M., Gering, E., Suck, J.B., ...

3rd Internat.Conf.on Phonon Physics and 6th Internat.Conf.on Phonon Scattering in Condensed Matter, Heidelberg, August 21-25, 1989

High energy neutron spectroscopy study of the electronic configuration in crystal field-split 5f systems (1988)

Caciuffo, R, Amoretti, G, Blaise, A, Fournier, J M, Hutchings, M T, Larroque, J, ...

Proc Int Conf on Neutron Scattering at ISIS: Recent highlights in Condensed Matter Research, Roma 14-16 December (1988)

Neutron diffraction study on U0.5Np0.5O2 at low temperatures (1984)

Tabuteau, A., Pagés, M., Rebizant, J., Manes, L., Caciuffo, R., ...

The results of a neutron diffraction study on U0.5Np0.5 O2 solid solution at low temperature are reported. Below T = 12 K the solid solution is magnetically ordered with a magnetic structure...

Neutron diffraction study on U0.5Np0.5O2 at low temperatures (1984)

Tabuteau, A., Pagés, M., Rebizant, J., Manes, L., Caciuffo, R., ...

The results of a neutron diffraction study on U0.5Np0.5 O2 solid solution at low temperature are reported. Below T = 12 K the solid solution is magnetically ordered with a magnetic structure...

Neutron diffraction study on U0.5Np0.5O2 at low temperatures (1984)

Tabuteau, A., Pagés, M., Rebizant, J., Manes, L., Caciuffo, R., ...

The results of a neutron diffraction study on U0.5Np0.5 O2 solid solution at low temperature are reported. Below T = 12 K the solid solution is magnetically ordered with a magnetic structure...