考虑外场的纳米团簇系统中的磁跃迁

2017 IEEE 7th International Conference Nanomaterials: Application & Properties (NAP) Pub Date : 2017-09-01 DOI:10.1109/NAP.2017.8190264

O. Yushchenko, A. Badalyan

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引用次数: 0

摘要

在朗道展开的框架下，考虑了纳米团簇体系中磁相变的现象学模型。我们假设热力学势包括熵和场分量、交换相互作用、变形和压力效应。得到了相对磁化强度的平稳值及其与温度的关系。研究了外加电场对相变的影响以及相变磁化率的温度依赖性。

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Magnetic transitions in nanocluster systems taking into account the external field

The phenomenological model of the magnetic phase transition in the nanocluster systems was considered within the framework of Landau expansion. We assumed that the thermodynamic potential includes entropic and field components, exchange interaction, distortion and pressure effects. The stationary value of relative magnetization and its temperature dependence were found. The effect of an external field on the phase transition and the temperature dependence of the susceptibility of the transition were investigated.

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2017 IEEE 7th International Conference Nanomaterials: Application & Properties (NAP)

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