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Effects of Fe–Fe bond length change in NaZn_(13)-type intermetallic compounds on magnetic properties and magnetic entropy change

机译:NaZn_(13)型金属间化合物中Fe-Fe键长变化对磁性能和磁熵变的影响

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摘要

In this paper the effects of Fe–Fe bond length change on magnetic properties and magnetic entropy change have been investigated on LaFe_(12.4-x)Si_xCo_(0.6) and LaFe_(12.3-x)Al_xCo_(0.7) intermetallic compounds. According to the analyses of Fe–Fe bond length change, the variation of Curie temperature and the unusual magnetic phase transition which results in the large magnetic entropy change were explained. The effects of the substitution of Co and Si for Fe on magnetic entropy change and field-induced itinerant-electron metamagnetic transition in LaFe_(12.4-x)Si_xCo_(0.6) compounds were also studied and the considerable magnetic entropy change has been achieved.
机译:在本文中,研究了Fe-Fe键长变化对LaFe_(12.4-x)Si_xCo_(0.6)和LaFe_(12.3-x)Al_xCo_(0.7)金属间化合物的磁性能和磁熵变的影响。通过对Fe-Fe键长变化的分析,解释了居里温度的变化和异常的磁性相变导致了较大的磁熵变。还研究了用Co和Si代替Fe对LaFe_(12.4-x)Si_xCo_(0.6)化合物的磁熵变和场致迭代电子-亚磁跃迁的影响,并取得了可观的磁熵变。

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