R. Osborn

Publication List Details

Period

1976 - 2009

Number

155

Co-Authors

The Transition from Heavy Fermion to Mixed Valence in Ce1-xYxAl3: A Quantitative Comparison with the Anderson Impurity Model (2009)

Goremychkin, E. A., Osborn, R., Sashin, I. L., Riseborough, P., Rainford, B. D., Adroja, D. T., ...

We present a neutron scattering investigation of Ce1-xYxAl3 as a function of chemical pressure, which induces a transition from heavy fermion behavior in CeAl3 (TK = 5 K) to a mixed valence state at...

Inelastic Neutron Scattering Studies of the Intermediate Valence Compound CePd3 (2009)

Fanelli, V. R., Lawrence, J. M., Wang, C. H., Christianson, A. D., Bauer, E. D., McClellan, K. J., ...

Inelastic neutron scattering measurements on a CePd3 single crystal show a magnetic response at 300 K that is independent of momentum transfer with a Lorentzian quasielastic energy spectrum with a...

Inelastic Neutron Scattering Studies of the Spin and Lattice Dynamics in Iron Arsenide Compounds (2009)

Osborn, R., Rosenkranz, S., Goremychkin, E. A., Christianson, A. D.

Neutrons have played an important role in advancing our understanding of the pairing mechanism and the symmetry of the superconducting energy gap in the iron arsenide compounds. Neutron measurements...

Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2 (2008)

Lumsden, M. D., Christianson, A. D., Parshall, D., Stone, M. B., Nagler, S. E., MacDougall, G. J., ...

Inelastic neutron scattering measurements on single crystals of superconducting BaFe1.84Co0.16As2 reveal a magnetic excitation located at wavevectors (1/2 1/2 L) in tetragonal notation. On cooling...

Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2 (2008)

Christianson, A. D., Goremychkin, E. A., Osborn, R., Rosenkranz, S., Lumsden, M. D., Malliakas, C. D., ...

The recent observations of superconductivity at temperatures up to 55K in compounds containing layers of iron arsenide have revealed a new class of high temperature superconductors that show striking...

Spin Glass Order Induced by Dynamic Frustration (2008)

Goremychkin, E. A., Osborn, R., Rainford, B. D., Macaluso, R. T., Adroja, D. T., Koza, M.

Spin glasses are systems whose magnetic moments freeze at low temperature into random orientations without long-range order. It is generally accepted that both frustration and disorder are essential...

Inelastic magnetic neutron scattering in CePd3 (2008)

Lawrence, J.M., Fanelli, V.R., Goremychkin, E.A., Osborn, R., Bauer, E.D., McClellan, K.J., ...

We have performed time-of-flight neutron scattering measurements on a single crystal of the intermediate valence compound CePd3. At 10 K, a Kondo-esque inelastic magnetic scattering peak occurs near...

Unconventional superconductivity in Ba0.6K0.4Fe2As2 from inelastic neutron scattering (2008)

Goremychkin, EA, Osborn, R, Rosenkranz, S, Lumsden, MD, Malliakas, CD, Todorov, IS, ...

A new family of superconductors containing layers of iron arsenide has attracted considerable interest because of their high transition temperatures (Tc), some of which are >50 K, and because of...

Reentrant Orbital Order and the True Ground State of LaSr2Mn2O7 (2007)

Li, Qing'An, Gray, K. E., Zheng, H., Claus, H., Rosenkranz, S., Ancona, S. Nyborg, ...

Contrary to conventional wisdom, our purified La2-2xSr1+2xMn2O7 crystals exhibit CE-type orbital and charge order as the low-temperature ground state for a hole doping level h = 0.5. For small...

Observation of two spin gap energies in the filled skutterudite compound CeOs4Sb12 (2007)

Adroja, DT, Park, J-G, Goremychkin, EA, McEwen, KA, Takeda, N, Rainford, BD, ...

The optical conductivity of the Kondo insulator compound CeOs4Sb12 reveals the formation of a 70 meV charge gap below 160 K. It also exhibits a weak shoulderlike structure at 30 meV, below 60 K. We...

Observation of two spin gap energies in the filled skutterudite compound CeOs4Sb12 (2007)

Adroja, D T, Goremychkin, E A, McEwen, K A, Takeda, N, Rainford, B D, ...

The optical conductivity of the Kondo insulator compound CeOs4Sb12 reveals the formation of a 70 meV charge gap below 160 K. It also exhibits a weak shoulderlike structure at 30 meV, below 60 K. We...

Localized Excitation in the Hybridisation Gap in YbAl3 (2006)

Christianson, A.D., Fanelli, V.R., Lawrence, J.M., Goremychkin, E.A., Osborn, R., Bauer, E.A., ...

The intermediate valence compound YbAl3 exhibits a broad magnetic excitation with characteristic energy E1 ~ 50meV, of order of the Kondo energy (TK ~ 600-700K). In the low temperature (T < Tcoh ~...

Localized excitation in the hybridization gap in YbAl3 (2006)

Christianson, A.D., Fanelli, V.R., Lawrence, J.M., Goremychkin, E.A., Osborn, R., Bauer, E.D., ...

The intermediate valence compound YbAl3 exhibits a broad magnetic excitation in the inelastic neutron scattering spectrum with characteristic energy E150 meV, equal to the Kondo energy (TK~600–700...

Magnetic and structural instabilities in CePd2Al2 and LaPd2Al2 (2006)

Chapon, L.C., Goremychkin, E.A., Osborn, R., Rainford, B.D., Short, S.

We have investigated the crystal and magnetic structure of the RPd2Al2 compounds (R=La, Ce) by neutron powder diffraction (ND) and inelastic neutron scattering (INS). The ND study shows that both...

Temperature dependence of the low-energy crystal field excitation in PrOS4Sb12: effect of the energy gap (2006)

Goremychkin, E.A., Osborn, R., Rainford, B.D., Bauer, E.D., Maple, M.B., Koza, M.

We have performed inelastic neutron scattering measurements of the singlet-triplet crystal-field (CF) excitation in the filled skutterudite compound PrOs4Sb12 in the vicinity of the superconducting...

Nano-magnetic droplets and implications to orbital ordering in La1-xSrxCoO3 (2005)

Phelan, D., Louca, Despina, Rosenkranz, S., Qiu, Y., Chupas, P. J., ...

Inelastic cold neutron scattering on LaCoO3 provided evidence for a distinct low energy excitation at 0.6 meV coincident with the thermally induced magnetic transition. Coexisting strong...

Influence of the crystal field potential on the superconducting properties of PrRU4Sb12 (2005)

Adroja, D.T., Park, J.G., Goremychkin, E.A., Takeda, N., Ishikawa, M., McEwen, K.A., ...

We have determined the crystal field potential of the superconductor PrRu4Sb12 View the MathML sourceusing inelastic neutron scattering. The ground state of the Pr+3 ions in Th point group symmetry...

Localized excitation in the hybridization gap in YbAl3 (2005)

Christianson, A. D., Lawrence, J. M., Goremychkin, E. A., Osborn, R., Bauer, E. D., Sarrao, J. L., ...

The intermediate valence compound YbAl3 exhibits a broad magnetic excitation with characteristic energy E1 ~ 50meV, of order of the Kondo energy (TK ~ 600-700K). In the low temperature (T < Tcoh ~...

Crystal field potential of PrOs4Sb12: consequences for superconductivity (2004)

Goremychkin, E.A., Osborn, R., Bauer, E.D., Maple, M.B., Frederick, N.A., Yuhasz, W.M., ...

The results of inelastic neutron scattering provide a solution for the crystal field level scheme in PrOs4Sb12, in which the ground state in the cubic crystal field potential of T(h) symmetry is a...

Crystal field potential of PrOs4Sb12: consequences for superconductivity (2004)

Goremychkin, E.A., Osborn, R., Bauer, E.D., Maple, M.B., Frederick, N.A., Yuhasz, W.M., ...

The results of inelastic neutron scattering provide a solution for the crystal field level scheme in Pr⁡Os4Sb12, in which the ground state in the cubic crystal field potential of Th symmetry is a...

The Crystal Field Potential of PrOs4Sb12: Consequences for Superconductivity (2004)

Goremychkin, E. A., Osborn, R., Bauer, E. D., Maple, M. B., Frederick, N. A., Yuhasz, W. M., ...

The results of inelastic neutron scattering provide a solution for the crystal field level scheme in PrOs4Sb12 in which the ground state in the cubic crystal field potential of Th symmetry is a...

Crystalline Electric Field Excitations in the Heavy Fermion Superconductor CeCoIn_5 (2004)

Bauer, E. D., Christianson, A. D., Lawrence, J. M., Goremychkin, E. A., Moreno, N. O., Curro, N. J., ...

The crystalline electric field (CEF) energy level scheme of the heavy fermion superconductor CeCoIn_5 has been determined by means of inelastic neutron scattering (INS). Peaks observed in the INS...

Orbital and spin chains in ZnV2O4 (2003)

Louca, D., Ueda, H., Park, S., Sato, T. J., Isobe, M., ...

Our powder inelastic neutron scattering data indicate that \zvo is a system of spin chains that are three dimensionally tangled in the cubic phase above 50 K due to randomly occupied $t_{2g}$...

No role for phonon entropy in the fcc -> fcc volume collapse transition in Ce0.9Th0.1 at ambient pressure (2003)

Manley, M. E., McQueeney, R. J., Fultz, B., Swan-Wood, T., Delaire, O., Goremychkin, E. A., ...

Phonon densities of states (DOS) were obtained from inelastic neutron scattering measurements on Ce0.9Th0.1 at temperatures from 10 to 300 K. The alpha phase showed a significant softening of its...

Glass Transition in the Polaron Dynamics of CMR Manganites (2002)

Argyriou, D. N., Lynn, J. W., Osborn, R., Campbell, B., Mitchell, J. F., Ruett, U., ...

Neutron scattering measurements on a bilayer manganite near optimal doping show that the short-range polarons correlations are completely dynamic at high T, but then freeze upon cooling to a...

Magnetic correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3 (2002)

Goremychkin, E.A., Osborn, R., Rainford, B.D., Costi, T.A., Murani, A.P., Scott, C.A., ...

By combining the results of muon spin relaxation and inelastic neutron scattering in the heavy fermion compounds Ce1-xLaxAl3 (0.0

Magnetic Correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3 (2001)

Goremychkin, E. A., Osborn, R., Rainford, B. D., Costi, T. A., Murani, A. P., Scott, C. A., ...

By combining the results of muon spin rotation and inelastic neutron scattering in the heavy fermion compounds Ce1-xLaxAl3 (0.0

Magnetic correlations and the quantum critical point of UCu5-xPdx (x = 1,1.5) (2001)

Aronson, M.C., Osborn, R., Chau, R., Maple, M.B., Rainford, B.D., Murani, A.P.

We have used inelastic neutron scattering to determine the magnetic susceptibility χ(q,ω,T) of the non-Fermi-liquid compounds UCu 5-xPdx (x = 1,1.5) for energies ω between 0.2 and 2 meV, and for...

Phonon density of states in MgB2 (2001)

Osborn, R., Goremychkin, E.A., Kolesnikov, A.I., Hinks, D.G.

We report inelastic neutron scattering measurements of the phonon density of states in Mg 11B2, which has a superconducting transition at 39.2 K. The acoustic phonons extend in energy to 36 meV, and...

The Structure of Nanoscale Polaron Correlations in La1.2Sr1.8Mn2O7 (2001)

Campbell, B. J., Osborn, R., Argyriou, D. N., Vasiliu-Doloc, L., Mitchell, J. F., Sinha, S. K., ...

A system of strongly-interacting electron-lattice polarons can exhibit charge and orbital order at sufficiently high polaron concentrations. In this study, the structure of short-range polaron...

Phonon density of states in MgB2 (2001)

Osborn, R., Goremychkin, E.A., Kolesnikov, A.I., Hinks, D.G.

We report inelastic neutron scattering measurements of the phonon density of states in Mg 11B2, which has a superconducting transition at 39.2 K. The acoustic phonons extend in energy to 36 meV, and...

Mixed lattice and electronic states in high-temperature superconductors (2001)

McQueeney, R. J., Sarrao, J. L., Pagliuso, P. G., Stephens, P. W., Osborn, R.

Inelastic neutron scattering measurements are presented which show the abrupt development of new oxygen lattice vibrations near the doping-induced metal-insulator transition in La(2-x)Sr(x)CuO(4). A...

Large harmonic softening of the phonon density of states of uranium (2001)

Manley, M. E., Fultz, B., McQueeney, R. J., Brown, C. M., Hults, W. L., Smith, J. L., ...

Phonon density-of-states curves were obtained from inelastic neutron scattering spectra from the three crystalline phases of uranium at temperatures from 50 to 1213 K. The alpha -phase showed an...

Phonon Density-of-States in MgB2 (2001)

Osborn, R., Goremychkin, E. A., Kolesnikov, A. I., Hinks, D. G.

We report inelastic neutron scattering measurements of the phonon density-of-states in Mg11B2, which has a superconducting transition at 39.2 K. The acoustic phonons extend in energy to 36 meV, and...

Magnetic correlations and the quantum critical point of UCu5-xPdx (x =1, 1.5) (2001)

Aronson, M.C., Osborn, R., Chau, R., Maple, M.B., Rainford, B.D., Murani, A.P.

We have used inelastic neutron scattering to determine the magnetic susceptibility chi (q, omega ,T) of the non-Fermi-liquid compounds UCu 5-xPdx (x = 1,1.5) for energies omega between 0.2 and 2 meV,...

Slow crossover in YbXCu4 intermediate valence compounds (2000)

Lawrence, J. M., Riseborough, P. S., Booth, C. H., Sarrao, J. L., Thompson, J. D., Osborn, R.

We compare the results of measurements of the magnetic susceptibility Chi(T), the linear coefficient of specific heat Gamma(T)=C(T)/T and 4f occupation number nf(T) for the intermediate valence...

Observation of Kosterlitz-Thouless spin correlations in the colossally magnetoresistive layered manganite $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$ (1999)

Rosenkranz, S., Osborn, R., Vasiliu-Doloc, L., Lynn, J. W., Sinha, S. K., Mitchell, J. F.

The spin correlations of the bilayer manganite $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$ have been studied using neutron scattering. On cooling within the paramagnetic state, we observe purely two-dimensional...

Charge melting and polaron collapse in $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$ (1999)

Vasiliu-Doloc, L., Rosenkranz, S., Osborn, R., Sinha, S. K., Lynn, J. W., Mesot, J., ...

X-ray and neutron scattering measurements directly demonstrate the existence of polarons in the paramagnetic phase of optimally-doped colossal magnetoresistive oxides. The polarons exhibit...

Phonons and hole localization in La(1.475)Nd(0.4)Sr(0.125)CuO(4) (1999)

McQueeney, R. J., Sarrao, J. L., Gardner, J. S., Hundley, M. F., Osborn, R.

The phonon densities-of-states of La(1.475)Nd(0.4)Sr(0.125)CuO(4) and La(1.9)Sr(0.1)CuO(4) were measured using inelastic neutron scattering. The ~70 meV phonon band which appears due to hole doping...

Neutron scattering investigation of magnetic bilayer correlations in $La_{1.2}Sr_{1.8}Mn_2O_7$ (1997)

Osborn, R., Rosenkranz, S., Argyriou, D. N., Vasiliu-Doloc, L., Lynn, J. W., Sinha, S. K., ...

Neutron scattering investigations of the paramagnetic correlations in the layered manganite La$_{1.2}$Sr$_{1.8}$Mn$_{2}$O$_{7}$, which exhibits colossal magnetoresistance above the Curie transition...

Non-Fermi-liquid scaling in ( x = 1, 1.5) (1996)

Aronson, M C, Maple, M. B., Chau, R, Georges, A, Tsvelik, A M, Osborn, R

We review the compiled measurements of the imaginary part of the dynamical magnetic susceptibility , static susceptibility , electrical resistivity and specific heat C(T) in the uranium...

Magnetic inelastic scattering: present results and future trends (1996)

Osborn, R

Proc Int Workshop os Science in Neutron-arena of JHP (KEK, Tsubas,Japaa) p75 (1996)

Non fermi liquid ground states in strongly correlated f-electron materials (1995)

Aronson, M. C., Movshovich, R., Seaman, C. L., Dalichaouch, Y., Gajewski, D. A., Andrade, M. C., ...

Experimental efforts to characterize and develop an understanding of non Fermi liquid (NFL) behavior at low temperature in f-electron materials are reviewed for three f-electron systems: M 1−x U x...

Intermultiplet transitions using neutron spectroscopy (1991)

Osborn, R, Lovesey, S W, Taylor, A D, Balcar, E

Handbook on the Physics and Chemistry of the Rare Earths Vol 14 eds K A Gschneidner and L Eyring, 1991, North Holland, Amsterdam, Chap 93 p1 (1991)

Pulsed neutron studies of materials (1991)

Tomkinson, J, Carlile, C J, Lovesey, S W, Osborn, R, Taylor, A D

Spectroscopy of Advanced Materials, eds R J H Clark and R E Hester, John Wiley & Sons Ch 3 pp135-214 (1991)

Oxygen defects in the high Tc system YBa2Cu3O7-x by neutron scattering (1988)

Bellissent, R, Bowden, Z A, Hutiray, Gy, Menelle, A, Mezei, F, Osborn, R, ...

8th Int Conf of the Condensed Matt div of EPS, Budapest, Hungary, 6-8 April (1988).

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)

Developments in inelastic instrumentation at ISIS (1988)

Taylor, A D, Bowden, Z A, Carlile, C J, Hagen, M E, Hannon, A C, Mayers, J, ...

Advanced Neutron Sources 1988 (D K Hyer ed) IOP Conference Series 97 (1989) 271-295

Investigation of oxygen disorder, thermal parameters, lattice vibrations and elastic constants of UO2 and ThO2 at temperatures up to 2 930 K (1984)

Clausen, K., Hayes, W., Hutchings, M. T., Macdonald, J.E., Osborn, R., Schnabel, P.

A knowledge of the thermodynamic properties of UO2 at temperatures in the region 1 500-3 100 K is of importance in reactor safety calculations, yet there are relatively few detailed experimental data...

Investigation of oxygen disorder, thermal parameters, lattice vibrations and elastic constants of UO2 and ThO2 at temperatures up to 2 930 K (1984)

Clausen, K., Hayes, W., Hutchings, M. T., Macdonald, J.E., Osborn, R., Schnabel, P.

A knowledge of the thermodynamic properties of UO2 at temperatures in the region 1 500-3 100 K is of importance in reactor safety calculations, yet there are relatively few detailed experimental data...

Investigation of oxygen disorder, thermal parameters, lattice vibrations and elastic constants of UO2 and ThO2 at temperatures up to 2 930 K (1984)

Clausen, K., Hayes, W., Hutchings, M. T., Macdonald, J.E., Osborn, R., Schnabel, P.

A knowledge of the thermodynamic properties of UO2 at temperatures in the region 1 500-3 100 K is of importance in reactor safety calculations, yet there are relatively few detailed experimental data...

RENAL TISSUE OXYGENATION FOLLOWING INDUCED HYPOTENSION IN DOGS (1984)

BEHNIA, R., KOUSHANPOUR, E., GOLDSTICK, T. K., LlNDE, H. W., OSBORN, R.

Renal oxygenation was studied during indnrrd hypotension in mongrel dogs, anaesthetized with 1–1.5% halothane in oxygen. Hypotension was induced with an infusion i.v. of sodium nitroprusside...

AGE-RELATED IMMUNITY TO MEASLES, MUMPS AND RUBELLA IN MIDDLE AMERICAN AND UNITED STATES CHILDREN (1976)

KENNY, M T., JACKSON, J E, MEDLER, E M, MILLER, S A., OSBORN, R.

Serum samples from 3000 1 to 15-year-old children residing in the Dominican Republic, Honduras and the Republic of Panama were analyzed for measles, mumps and rubella susceptibility. These data were...