NUCLEAR SPIN-LATTICE RELAXATION AND EVIDENCE FOR A LOW TEMPERATURE PHASE TRANSITION IN SOLID n-D2

Abstract

We present new results for the nuclear spin-lattice relaxation times in solide n-D2(X(J=1)=0.33) at low temperatures. There is an abrupt change in the temperature dependance of the relaxation times at T ≈ 170 mK and we interpret this in terms of a possible transition to a quadrupolar glass phase