The structural, magnetic and magnetocaloric properties of Mn5-xCrxGe3 alloys

被引：0
|
作者：
Sang, Yongzhuo [1 ]
Bao, Lifu [1 ]
Zhang, Hao [1 ]
Ding, Yunzhe [1 ]
Gao, Jilong [1 ]
Zhao, Danan [1 ]
Zhang, Hongwei [1 ]
Bai, Yuting [1 ]
Li, Zhijie [1 ]
机构：
[1] Shenyang Univ Technol, Sch Sci, Shenyang 110870, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2025年 / 1019卷
基金：
中国国家自然科学基金;
关键词：
Magnetocaloric effects; Mn; 5; Ge; 3; alloys; Rietveld refinement; X -Ray diffraction; TRANSITION;
D O I：
10.1016/j.jallcom.2025.179298
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of Cr substitution on Mn in Mn5Ge3 on structure, magnetic and magnetocaloric effect has been investigated. The samples exhibit second-order ferromagnetic transition with decreased transition temperature ranged from 298.5 to 242.5 K. The extensive and well-tuned temperature range can be interpreted with structural analysis that shows Mn-Mn distance, especially the distance between MnII atoms, representing exchange coupling is mediated by substitution of Cr. The moderate magnetic entropy change in wide temperature range consequently can be obtained and is available for solid magnetic refrigerants that needs large working temperature range.
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页数：6
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