171 citations · 721 across the 27 of their papers we have counts for
27 papers
Disentangling orbital and spin exchange interactions for Co on a rocksalt lattice
P. M. Sarte, R. A. Cowley, E. E. Rodriguez +14
Neutron spectroscopy was applied to study the magnetic interactions of orbitally degenerate Co on a host MgO rocksalt lattice where no long range spin or orbital order exist…
Phase transition of chemically doped uniaxial relaxor ferroelectric
Shravani Chillal, Dimitrios Koulialias, Severian Gvasaliya +4
We report a neutron scattering study of the ferroelectric phase transition in SrCeBaNbO (SBN-61:Ce). We find no evidence for a soft transverse…
Neutron scattering measurements of and spin-orbit excitations below the Mott-Hubbard gap in CoO
R. A. Cowley, W. J. L. Buyers, C. Stock +4
Neutron scattering is used to investigate the single-ion spin and orbital excitations below the Mott-Hubbard gap in CoO. Three excitations are reported at 0.870 0.009 eV, 1.8…
Phase Transition of the Uniaxial Disordered Ferroelectric SrBaNbO
S. N. Gvasaliya, R. A. Cowley, L. I. Ivleva +3
We report a neutron scattering study of a ferroelectric phase transition in SrBaNbO (SBN-61). The ferroelectric polarization is along the crystallographic…
Cube-shape diffuse scattering and the ground state of
A. Cervellino, S. N. Gvasaliya, B. Roessli +6
A quite unusual diffuse scattering phenomenology was observed in the single-crystal X-ray diffraction pattern of cubic perovskite BMT ($\mathrm{BaMg}_{1/3}\mathrm{Ta}_{2/3}\mathrm{…
The Structure and Low-Energy Phonons of the Nonferroelectric Mixed Perovskite: BaMg1/3Ta2/3O3
A. Cervellino, S. N. Gvasaliya, B. Roessli +5
The structure of BaMg1/3Ta2/3O3 (BMT) has been studied using X-ray scattering. The phonons have been measured and the results are similar to those of other materials with the perov…