Off-Diagonal Induction of Short-Range Order: Spin Pair Correlation of the Quantum XXZ-Model
Shigeo Homma, H. Matsuda, T. Horiki +1 more
The z-component spin pair corelation Cz(r) of the one-dimensional quantum XXZ-model is calculated by the decoupled cell Monte Carlo method. At higher temperatures |Cz(1)| increases with increasing off-diagonal coupling constant Jx, whereas Cz(2) always decreases with Jx. Concept of off-diagonal induction of short-range order is introduced and discussed.
Progress of Theoretical Physics•Oct 1, 1988•1 citation