Spin dynamics in the one-dimensional S = 1/2 Heisenberg antiferromagnet CuGeO3

Abstract

The temperature dependences of 1/T1 and 1/T2G in the uniform state of the spin-Peierls compound CuGeO3 are investigated using the Green's function method. This study is conducted within the framework of the S = 1/2 one-dimensional Heisenberg model with a next-nearest-neighbor competing interaction. The results reproduce the main features of the observed experimental behavior.