中国物理B ›› 2016, Vol. 25 ›› Issue (5): 57305-057305.doi: 10.1088/1674-1056/25/5/057305

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Magnetoresistance and exchange bias in high Mn content melt-spun Mn46Ni42Sn11Sb1 alloy ribbon

Qingxue Huang(黄庆学), Fenghua Chen(陈峰华), Mingang Zhang(张敏刚), Xiaohong Xu(许小红)   

  1. 1. Heavy Machinery Engineering Research Center of Education Ministry, College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    2. School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education, Shanxi Normal University, Linfen 041004, China
  • 收稿日期:2015-12-10 修回日期:2016-01-25 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: Qingxue Huang, Fenghua Chen E-mail:qxhuang_pd@163.com;phycfh@163.com
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB722801), the Postdoctoral Science Foundation of China (Grant No. 2015M571285), the National Natural Science Foundation of China (Grant No. 51401140), the Postdoctoral Research Station Foundation of Taiyuan University of Science and Technology, China (Grant Nos. 20142014, 20152041, and 20151082), the Natural Science Foundation of Shanxi Province, China (Grants Nos. 2015021019, 2015091011, and 2015081011), and the Key Team of Scientific and Technological Innovation of Shanxi Province, China (Grant No. 2013131009).

Magnetoresistance and exchange bias in high Mn content melt-spun Mn46Ni42Sn11Sb1 alloy ribbon

Qingxue Huang(黄庆学)1, Fenghua Chen(陈峰华)1, Mingang Zhang(张敏刚)1, Xiaohong Xu(许小红)2   

  1. 1. Heavy Machinery Engineering Research Center of Education Ministry, College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    2. School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education, Shanxi Normal University, Linfen 041004, China
  • Received:2015-12-10 Revised:2016-01-25 Online:2016-05-05 Published:2016-05-05
  • Contact: Qingxue Huang, Fenghua Chen E-mail:qxhuang_pd@163.com;phycfh@163.com
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB722801), the Postdoctoral Science Foundation of China (Grant No. 2015M571285), the National Natural Science Foundation of China (Grant No. 51401140), the Postdoctoral Research Station Foundation of Taiyuan University of Science and Technology, China (Grant Nos. 20142014, 20152041, and 20151082), the Natural Science Foundation of Shanxi Province, China (Grants Nos. 2015021019, 2015091011, and 2015081011), and the Key Team of Scientific and Technological Innovation of Shanxi Province, China (Grant No. 2013131009).

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摘要： Highly textured Heusler alloy Mn46Ni42Sn11Sb1 ribbons were prepared by melt spinning. The annealed high Mn content Mn46Ni42Sn11Sb1 ribbon cross-section microstructure, crystal structure, martensitic transformation (MT), and magnetoresistance (MR) properties were investigated. The MR in the annealed ribbon was assessed by the magnetic field direction perpendicular to the ribbon surface with the magnetic field up to 30 kOe. The large negative value of 25% for MR was obtained at 244 K. The exchange bias (EB) effects of the as-spun and annealed ribbons were investigated. After annealing, the EB effects have been improved by about 25 Oe at the temperature of 50 K. The magnetizations have increased approximately by 10% more than the as-spun ribbon.

关键词: Heusler alloy, melt spun, magnetoresistance, exchange bias

Abstract: Highly textured Heusler alloy Mn46Ni42Sn11Sb1 ribbons were prepared by melt spinning. The annealed high Mn content Mn46Ni42Sn11Sb1 ribbon cross-section microstructure, crystal structure, martensitic transformation (MT), and magnetoresistance (MR) properties were investigated. The MR in the annealed ribbon was assessed by the magnetic field direction perpendicular to the ribbon surface with the magnetic field up to 30 kOe. The large negative value of 25% for MR was obtained at 244 K. The exchange bias (EB) effects of the as-spun and annealed ribbons were investigated. After annealing, the EB effects have been improved by about 25 Oe at the temperature of 50 K. The magnetizations have increased approximately by 10% more than the as-spun ribbon.

Key words: Heusler alloy, melt spun, magnetoresistance, exchange bias

中图分类号:  (Magnetoresistance)

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