[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.
 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.
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Cr取代亚铁磁性Mn2Sb0.95In0.05合金的磁及磁热性能()
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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12
 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 Ma12
 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
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