S. Maegawa et H. Tanaka, SPIN FLUCTUATION IN A TRIANGULAR LATTICE ANTIFERROMAGNET CSNIBR3 STUDIED BY NMR, Journal of magnetism and magnetic materials, 140, 1995, pp. 1789-1790
Nuclear spin relaxation time of a triangular lattice Heisenberg antife
rromagnet CsNiBr3 has been measured to investigate the magnetic fluctu
ation in the frustrated system. The two-magnon process due to a swingi
ng motion of the triangular spin structure in a plane containing the c
-axis contributes the relaxation in the ordered phase.