arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2106.11697cond-mat.str-elcond-mat.mtrl-sci
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具有局域磁矩的稀土和过渡金属化合物中的无公度磁序

Incommensurate magnetic order in rare earth and transition metal compounds with local moments

A. K. Pankratova, P. A. Igoshev, V. Yu. Irkhin

摘要:

在平均场近似下的$s$ - $d(f)$交换模型框架内,研究了正方形、简单立方、体心和面心立方晶格中铁磁、螺旋和公度反铁磁有序的形成.考虑到形成不均匀的状态(磁相分离),这必然会出现在一阶相变的电子填充参数的可能性。反铁磁态和螺旋态的饱和度取决于模型的参数进行了研究。所获得的结果包括丰富多样的磁结构和相变,允许解释的磁性的半导体和金属系统包含磁性原子。

英文摘要:

Within the framework of the $s$-$d(f)$ exchange model in the mean-field approximation for square, simple cubic, body-centered and face-centered cubic lattices, the formation of a ferromagnetic, spiral, and commensurate antiferromagnetic order is investigated. The possibility of the formation of inhomogeneous states (magnetic phase separation), which necessarily arises during first-order phase transitions in the electron filling parameter, is taken into account. The saturation of the antiferromagnetic and spiral states is studied depending on the parameters of the model. The results obtained include a rich variety of magnetic structures and phase transitions, allowing the interpretation of magnetic properties of semiconducting and metallic systems containing magnetic atoms.

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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