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arXiv 0806.2692cond-mat.str-elcond-mat.mtrl-sci
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阻挫自旋链系统Ca $_3$ Co $_2$ O $_6$的磁化动力学

Dynamics of magnetization in frustrated spin-chain systems: Ca$_3$Co$_2$O$_6$

Yu. B. Kudasov, A. S. Korshunov, V. N. Pavlov, D. A. Maslov

摘要:

在二维模型的框架下研究了三角晶格伊辛自旋链的磁化动力学。假设刚性链与最近的相邻链、外部磁场和导致链随时间随机改变其状态的热库相互作用。一个单一的自旋翻转过程的概率是假设在一个类似的形式。该技术允许适当地描述在Ca $_3$ Co $_2$ O $_6$中观察到的磁化曲线中的步骤以及它们对磁场扫描速率和温度的依赖性。还观察到从低温到高温相的过渡。

英文摘要:

The magnetization dynamics of the triangular lattice of Ising spin chains is investigated in the framework of a two-dimensional model. The rigid chains are assumed to interact with the nearest neighboring chains, an external magnetic field, and a heat reservoir that causes the chains to change their states randomly with time. A probability of a single spin-flip process is assumed in a Glauber-like form. This technique allows describing properly the steps in the magnetization curves observed in Ca$_3$Co$_2$O$_6$ and their dependence on a magnetic field sweep rate and temperature. A transition from a low-temperature to high-temperature phase is also observed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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