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arXiv 0802.3686cond-mat.mtrl-scicond-mat.other
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$Mn_{1-x}A_xAs_{1-y}B_y$合金的电子结构和铁磁行为

Electronic structure and ferromagnetic behavior in the $Mn_{1-x}A_xAs_{1-y}B_y$ alloys

A. V. Golovchan, I. F. Gribanov

摘要:

在这项工作中,系统的从头算研究掺杂对铁磁性MnAs的电子结构和局部磁矩的影响已经进行。所考虑的大多数替代元素,潜在地适合于作为磁制冷机的工作材料的MnAs的改性被示出导致铁磁矩的减少。但当磁矩增大时,也有阴离子取代的变体(例如,As取代S和Se)。

英文摘要:

In this work, a systematic ab initio study of the influence of doping on electronic structure and local magnetic moments of ferromagnetic MnAs has been carried out. The majority of the considered substitution elements, potentially suitable for modification of MnAs as working material of magnetic refrigerators is shown to result in reduction of the ferromagnetic moment. But there are variants of anionic substitution (for example, substitution of As for S and Se) when the magnetic moment grows.

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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