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Dipole-active optical phonons in YTiO_3: ellipsometry study and lattice-dynamics calculations
N. N. Kovaleva, A. V. Boris, L. Capogna +6
The anisotropic complex dielectric response was accurately extracted from spectroscopic ellipsometry measurements at phonon frequencies for the three principal crystallographic dir…
Pressure Induced Changes in the Antiferromagnetic Superconductor YbPd2Sn
A-M. Cumberlidge, P. L. Alireza, A. F. Kusmartseva +4
Low temperature ac magnetic susceptibility measurements of the coexistent antiferromagnetic superconductor YbPd2Sn have been made in hydrostatic pressures < 74 kbar in moissanite a…
Spin structure and magnetic frustration in multiferroic RMn2O5 (R = Tb, Ho, Dy)
G. R. Blake, L. C. Chapon, P. G. Radaelli +4
We have studied the crystal and magnetic structures of the magnetoelectric materials RMn2O5 (R = Tb, Ho, Dy) using neutron diffraction as a function of temperature. All three mater…
Dynamics and transport properties of Kondo insulators
N. S. Vidhyadhiraja, Victoria E. Smith, David E. Logan +1
A many-body theory of paramagnetic Kondo insulators is described, focusing specifically on single-particle dynamics, scattering rates, d.c. transport and optical conductivities. Th…