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…