Infinite-Range Quantum Dzyaloshinskii-Moriya Spin Glass Model

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2003,（11）
• 页码范围: 2030-2032
• 页数: 3页
• 语种: 英文

摘要

Based on the replica method and the imaginary time functional-integral technique,we investigate the infiniterange quantum Dzyaloshinskii-Moriya spin glass model.It is found that the quantum Dzyaloshinskii-Moriya spin glass model behaves in a Heisenberg-like manner.The specific heat has the crossover behaviour.The broad Maximum in specific heat is shifted to higher temperature with increasing applied field.These features are in good agreement with the observation of Brodale et al.[J.Magn.Magn.Matter.31-34(1983)1331] The susceptibility of the system has the typical spin glass feature.