Magnetic phase transitions and magnetocaloric effect in the Fe-doped MnNiGe alloys期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Magnetic phase transitions and magnetocaloric effect in the Fe-doped MnNiGe alloys

Authors:	Zhang Cheng-Liang Wang Dun-Hui Chen Jian Wang Ting-Zhi Xie Guang-Xi and Zhu Chun

Affiliation:	School of Science, Jiangnan University, Wuxi 214122, China;National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;School of Science, Jiangnan University, Wuxi 214122, China;School of Science, Jiangnan University, Wuxi 214122, China;School of Science, Jiangnan University, Wuxi 214122, China;School of Science, Jiangnan University, Wuxi 214122, China

Abstract:	The magnetic phase transition and magnetocaloric effects in Fe-doped MnNiGe alloys are investigated. The substitution of Fe for Ni decreases the structural transition temperature remarkably, resulting in the magnetostructural transition occurring between antiferromagnetic and ferromagnetic states in MnNi_{1 - x}Fe_xGe alloy. Owing to the enhanced ferromagnetic coupling induced by the substitution of Fe, metamagnetic behaviour is also observed in TiNiSi-type phase of MnNi_{1 - x}Fe_xGe alloys at temperature below the structural transition temperature.

Keywords:	magnetostructural transition metamagnetic magnetocaloric effect
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