中国物理B ›› 2016, Vol. 25 ›› Issue (11): 117503-117503.doi: 10.1088/1674-1056/25/11/117503

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

Dy substitution effect on the temperature dependences of magnetostriction in Pr1-xDyxFe1.9 alloys

Yan-Mei Tang(唐妍梅), Hai-Fu Huang(黄海富), Shao-Long Tang(唐少龙), You-Wei Du(都有为)   

  1. 1 College of Physics and Technology, Guangxi Normal University, Guilin 541004, China;
    2 Institute of Materials Engineering, National Laboratory of Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2016-05-09 修回日期:2016-07-25 出版日期:2016-11-05 发布日期:2016-11-05
  • 通讯作者: Yan-Mei Tang, Shao-Long Tang E-mail:tangym0707@163.com;tangsl@nju.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. U1232210), the Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No. 2015GXNSFBA139020), and the Enhancement of the Basic Ability of Teachers of Guangxi Zhuang Autonomous Region, China (Grant No. KY2016YB068).

Dy substitution effect on the temperature dependences of magnetostriction in Pr1-xDyxFe1.9 alloys

Yan-Mei Tang(唐妍梅)1,2, Hai-Fu Huang(黄海富)2, Shao-Long Tang(唐少龙)2, You-Wei Du(都有为)2   

  1. 1 College of Physics and Technology, Guangxi Normal University, Guilin 541004, China;
    2 Institute of Materials Engineering, National Laboratory of Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • Received:2016-05-09 Revised:2016-07-25 Online:2016-11-05 Published:2016-11-05
  • Contact: Yan-Mei Tang, Shao-Long Tang E-mail:tangym0707@163.com;tangsl@nju.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. U1232210), the Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No. 2015GXNSFBA139020), and the Enhancement of the Basic Ability of Teachers of Guangxi Zhuang Autonomous Region, China (Grant No. KY2016YB068).

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摘要：

The temperature dependences of magnetostriction in Pr1-xDyxFe1.9 (0≤x≤1.0) alloys between 5 K and 300 K were investigated. An unusual decrease of magnetostriction with temperature decreasing was found in Pr-rich alloys (0≤x≤0.2), due to the change of the easy magnetization direction (EMD). Dy substitution reduces the magnetostriction in high-magnetic field (10 kOe≤H≤90 kOe) at 5 K, while a small amount of Dy substitution (x=0.05) is beneficial to increasing the magnetostriction in low-magnetic field between 10 K and 50 K. This makes the alloys a potential candidate for low temperature applications.

关键词: Dy substitution, magnetostriction, easy magnetization direction

Abstract:

The temperature dependences of magnetostriction in Pr1-xDyxFe1.9 (0≤x≤1.0) alloys between 5 K and 300 K were investigated. An unusual decrease of magnetostriction with temperature decreasing was found in Pr-rich alloys (0≤x≤0.2), due to the change of the easy magnetization direction (EMD). Dy substitution reduces the magnetostriction in high-magnetic field (10 kOe≤H≤90 kOe) at 5 K, while a small amount of Dy substitution (x=0.05) is beneficial to increasing the magnetostriction in low-magnetic field between 10 K and 50 K. This makes the alloys a potential candidate for low temperature applications.

Key words: Dy substitution, magnetostriction, easy magnetization direction

中图分类号:  (Fe and its alloys)

  • 75.50.Bb
75.80.+q (Magnetomechanical effects, magnetostriction)