NMR spin-lattice relaxation time inTl205

Abstract
The nuclear-magnetic-resonance (NMR) spin-lattice relaxation time T1 of Tl205 in Tl metal was measured from 1.5 to 4.2 K and at 77 K and is T1T=(2.3±0.1)×103 sec K. The Korringa product is K2T1TS=0.75, indicating non-s-electron contributions to the isotropic Knight shift.