[1]葛青,冯国芳,马胜灿.Cr取代亚铁磁性Mn2Sb0.95In0.05合金的磁及磁热性能[J].中国材料进展,2017,(9):021-25.[doi:10.7502/j.issn.1674-3962.2017.09.05]
　Qing Ge,Guofang Feng,Shengcan Ma.The magnetic and magnetocaloric properties in Cr-substituted ferrimagnetic Mn2Sb0.95In0.05 alloys[J].MATERIALS CHINA,2017,(9):021-25.[doi:10.7502/j.issn.1674-3962.2017.09.05]
点击复制

Cr取代亚铁磁性Mn2Sb0.95In0.05合金的磁及磁热性能()
分享到：

中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2017年第9期
页码:
021-25
栏目:
特约研究论文
出版日期:
2017-09-30

文章信息/Info

Title:
The magnetic and magnetocaloric properties in Cr-substituted ferrimagnetic Mn2Sb0.95In0.05 alloys
作者:
葛青1; 冯国芳2; 马胜灿1; 2
 1. 江西理工大学稀土磁性材料与器件研究所（IREMMD），中华人民共和国，江西省赣州市，341000
2. 江西理工大学工程研究院，中华人民共和国，江西省赣州市，341000
Author(s):
 Qing Ge1;  Guofang Feng2;  Shengcan Ma1; 2
 1.The Institute for Rare Earth Magnetic Materials and Devices (IREMMD), Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
2.Insitute of Engineering & Research,  Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
关键词:
磁弹相变; 亚铁磁; 自旋重取向相变; 磁熵变
DOI:
10.7502/j.issn.1674-3962.2017.09.05
文献标志码:
A
摘要:
文章研究了Cr取代Mn后亚铁磁性Mn2-xCrxSb0.95In0.05（x = 0.05,0.09,0.13）合金的磁性和磁热性能。室温XRD证实合金中具有正交Cu2Sb型结构的主相。 由于反铁磁中有高磁响应，因此从XRD图谱中能观察到少量的铁磁MnSb杂相。随着温度的降低，在这些合金中，发生了亚铁磁到反铁磁的一级磁致弹性转变。 同时，在亚铁磁区域观察到两个自旋重新取向转变。 由于反铁磁 - 亚铁磁的转变过程中磁化强度突变，使得在Mn1.91Cr0.09Sb0.95In0.05合金中在0-10kOe的磁场变化中获得高达1.63J/kgK的大磁熵变。
Abstract:

The magnetic and magnetocaloric properties were studied in Cr-substituted ferrimagnetic Mn2-xCrxSb0.95In0.05 (x=0.05, 0.09, 0.13) alloys. A main phase with the tetragonal Cu2Sb-type structure was confirmed by XRD methodology at room temperature for these compounds.  A small amount of MnSb impurity phase of which is a ferromagnet is also observed from the XRD patterns, being responsible for the high magnetic response in the antiferromagnetic state. In these alloys, Cr-substitution for Mn results in a first-order magnetoelastic transition from ferrimagetic to antiferromagnetic state with decreasing temperature. Simultaneously, two spin-reorientation transitions are observed during the ferrimagnetic region. Owing to the abrupt change in magnetization around the antiferromagnetic-ferrimagetic transition, large magnetic entropy change as high as 1.63 J/kgK in Mn1.91Cr0.09Sb0.95In0.05 alloy under the magnetic field change of 0-10 kOe are obtained.

 

更新日期/Last Update: 2017-08-16