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Magnetic spectral response and lattice properties in mixed-valence Sm1-x Yx S solid solutions studied with x-ray diffraction, x-ray absorption spectroscopy, and inelastic neutron scattering
P. A. Alekseev, J. -M. Mignot, E. V. Nefeodova +11
Mixed-valence phenomena occurring in the "black" (B) and "gold" (G) phases of Sm1-x Yx S have been studied by x-ray diffraction, x-ray absorption spectroscopy, and inelastic neutro…
Evidence for short-range antiferromagnetic fluctuations in Kondo-insulating YbB12
J. -M. Mignot, P. A. Alekseev, K. S. Nemkovski +3
The spin dynamics of mixed-valence YbB12 has been studied by inelastic neutron scattering on a high-quality single crystal. In the Kondo-insulating regime realized at low temperatu…
Yb-Yb correlations and crystal-field effects in the Kondo insulator YbB12 and its solid solutions
P. A. Alekseev, J. -M. Mignot, K. S. Nemkovski +9
We have studied the effect of Lu substitution on the spin dynamics of the Kondo insulator YbB12 to clarify the origin of the spin-gap response previously observed at low temperatur…