室温磁致冷材料Mn5Ge2.7Zn0.3的相变、磁热效应和临界行为

室温磁致冷材料Mn₅Ge_2.7Zn_0.3的相变、磁热效应和临界行为

许童杰, 刘振华, 金怀宇, 刘结, 蒋秀丽, 李哲, 刘永生

Phase Transition, Magnetocaloric Effect, and Critical Behavior of Room Temperature Magnetic Refrigerant Material Mn₅Ge_2.7Zn_0.3

XU Tongjie, LIU Zhenhua, JIN Huaiyu, LIU Jie, JIANG Xiuli, LI Zhe, LIU Yongsheng

表1 Mn₅Ge_2.7Zn_0.3、Mn₅Ge₃和Mn₅Ge_2.7Si_0.3的晶格参数和晶胞体积对比

Tab.1 Comparison of lattice parameters and unit cell volume of Mn₅Ge_2.7Zn_0.3, Mn₅Ge₃ and Mn₅Ge_2.7Si_0.3

化合物	来源	a/nm	b/nm	c/nm	V/nm³
Mn₅Ge_2.7Zn_0.3	本实验	0.726 9	0.726 9	0.508 1	0.268 4
Mn₅Ge_2.7Si_0.3	文献[13]	0.717 5	0.717 5	0.501 0	0.257 9
Mn₅Ge₃	文献[14]	0.720 5	0.720 5	0.503 6	0.261 4