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Abstract The results of investigations into the spin dynamics in the YbB12 Kondo insulator with the use of inelastic neutron scattering, including experiments with a polarization analysis, are discussed. It is shown that, at low temperatures, the dynamic magnetic response in the structure of the YbB12 Kondo insulator is characterized by three dispersive excitations with a nontrivial q-dependence of the intensity. An increase in the temperature results in a crossover to the single-site spin fluctuation regime accompanied by suppression of collective excitations.
Crystallography Reports – Springer Journals
Published: May 1, 2007
Keywords: Crystallography and Scattering Methods
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