中国物理B ›› 2015, Vol. 24 ›› Issue (12): 127504-127504.doi: 10.1088/1674-1056/24/12/127504

所属专题: TOPICAL REVIEW — Magnetism, magnetic materials, and interdisciplinary research

• SPECIAL TOPIC --- Non-equilibrium phenomena in soft matters • 上一篇    下一篇

Magnetocaloric effects in RTX intermetallic compounds (R=Gd-Tm, T=Fe-Cu and Pd, X=Al and Si)

张虎a b, 沈保根b   

  1. a School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China;
    b State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2015-10-11 修回日期:2015-10-20 出版日期:2015-12-05 发布日期:2015-12-05
  • 通讯作者: Zhang Hu, Shen Bao-Gen E-mail:zhanghu@ustb.edu.cn;shenbg@aphy.iphy.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 51371026, 11274357, and 51327806) and the Fundamental Research Funds for the Central Universities (Grant Nos. FRF-TP-14-011A2 and FRF-TP-15-002A3).

Magnetocaloric effects in RTX intermetallic compounds (R=Gd-Tm, T=Fe-Cu and Pd, X=Al and Si)

Zhang Hu (张虎)a b, Shen Bao-Gen (沈保根)b   

  1. a School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China;
    b State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2015-10-11 Revised:2015-10-20 Online:2015-12-05 Published:2015-12-05
  • Contact: Zhang Hu, Shen Bao-Gen E-mail:zhanghu@ustb.edu.cn;shenbg@aphy.iphy.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 51371026, 11274357, and 51327806) and the Fundamental Research Funds for the Central Universities (Grant Nos. FRF-TP-14-011A2 and FRF-TP-15-002A3).

摘要:

The magnetocaloric effect (MCE) of RTSi and RTAl systems with R=Gd-Tm, T=Fe-Cu and Pd, which have been widely investigated in recent years, is reviewed. It is found that these RTX compounds exhibit various crystal structures and magnetic properties, which then result in different MCE. Large MCE has been observed not only in the typical ferromagnetic materials but also in the antiferromagnetic materials. The magnetic properties have been studied in detail to discuss the physical mechanism of large MCE in RTX compounds. Particularly, some RTX compounds such as ErFeSi, HoCuSi, HoCuAl exhibit large reversible MCE under low magnetic field change, which suggests that these compounds could be promising materials for magnetic refrigeration in a low temperature range.

关键词: rare-earth compounds, magnetocaloric effect, magnetic entropy change, magnetic property

Abstract:

The magnetocaloric effect (MCE) of RTSi and RTAl systems with R=Gd-Tm, T=Fe-Cu and Pd, which have been widely investigated in recent years, is reviewed. It is found that these RTX compounds exhibit various crystal structures and magnetic properties, which then result in different MCE. Large MCE has been observed not only in the typical ferromagnetic materials but also in the antiferromagnetic materials. The magnetic properties have been studied in detail to discuss the physical mechanism of large MCE in RTX compounds. Particularly, some RTX compounds such as ErFeSi, HoCuSi, HoCuAl exhibit large reversible MCE under low magnetic field change, which suggests that these compounds could be promising materials for magnetic refrigeration in a low temperature range.

Key words: rare-earth compounds, magnetocaloric effect, magnetic entropy change, magnetic property

中图分类号:  (Magnetocaloric effect, magnetic cooling)

  • 75.30.Sg
75.50.Cc (Other ferromagnetic metals and alloys) 75.50.Ee (Antiferromagnetics)