${}^1$H-NMR Study of the Random Bond Effect in the Quantum Spin System (CH${}_3$)${}_2$CHNH${}_3$Cu(Cl${}_x$Br${}_{1-x}$)${}_3$

T. Adachi, K. Kanada, T. Saito +2

Spin-lattice relaxation rate $T_1^{-1}$ of ${}^1$H-NMR has been measured in (CH${}_3$)${}_2$CHNH${}_3$Cu(Cl${}_x$Br${}_{1-x}$)${}_3$ with $x=0.88$, which has been reported to be gapped system wi…