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首页> 外文期刊>IEEE Transactions on Magnetics >Canonical-Ensemble Calculations of the Magnetic Susceptibility for a Spin-1/2 Spherical Kagome Cluster With Dzyaloshinskii–Moriya Interactions by Using Microcanonical Thermal Pure Quantum States
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Canonical-Ensemble Calculations of the Magnetic Susceptibility for a Spin-1/2 Spherical Kagome Cluster With Dzyaloshinskii–Moriya Interactions by Using Microcanonical Thermal Pure Quantum States

机译：使用微规范热纯量子态的自旋1/2球形Kagome簇与Dzyaloshinskii-Moriya相互作用的磁化率的标准集成计算

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摘要

For the spherical kagome system {W72V30}, which is a magnetic cluster with 30 V4+ ions, recent experimental and theoretical studies on the magnetization process at low temperatures have indicated that Dzyaloshinskii-Moriya interaction is an important ingredient in this material. In this paper, we use microcanonical thermal pure quantum (mTPQ) states to calculate the temperature dependence of the magnetic susceptibility and compare our calculated results with an existing experimental susceptibility. These mTPQ states are generated to reproduce the smooth microcanonical ensemble, which is difficult from the canonical ensemble. We show that adequate choice of a parameter in the generation procedure of mTPQ states leads to the same temperature dependence as the canonical ensemble.
机译：对于具有30个V4 +离子的磁性簇的球形kagome系统{W72V30}，最近在低温下磁化过程的实验和理论研究表明，Dzyaloshinskii-Moriya相互作用是该材料的重要成分。在本文中，我们使用微规范热纯量子（mTPQ）状态来计算磁化率的温度依赖性，并将我们的计算结果与现有的实验磁化率进行比较。生成这些mTPQ状态以重现平滑的微规范合奏，这对规范合奏是困难的。我们表明，在mTPQ状态的生成过程中适当选择参数会导致与规范集合相同的温度依赖性。

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