11B-NMR Study of SmB6under Pressure

We present first experimental results of 11 B-NMR of SmB 6 under applied pressure.From measurement of nuclear spin-lattice relaxation time (T 1 ) we find that with applied pressure the value of activation gap E g is decreasing.This decrease is larger than in case of other experimental techniques.We suppose that the enhancement of 1/T 1 in temperature range 20-100 K with applied pressure reflects not only a suppression of hybridization gap, but also changes in spin correlations.