中国物理B ›› 2023, Vol. 32 ›› Issue (1): 17102-017102.doi: 10.1088/1674-1056/ac5e94

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Formation of quaternary all-d-metal Heusler alloy by Co doping fcc type Ni2MnV and mechanical grinding induced B2-fcc transformation

Lu Peng(彭璐)1, Qiangqiang Zhang(张强强)1, Na Wang(王娜)1, Zhonghao Xia(夏中昊)1, Yajiu Zhang(张亚九)2, Zhigang Wu(吴志刚)2, Enke Liu(刘恩克)3, and Zhuhong Liu(柳祝红)1,†   

  1. 1 Department of Physics, University of Science and Technology Beijing, Beijing 100083, China;
    2 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
    3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2022-01-01 修回日期:2022-03-12 接受日期:2022-03-17 出版日期:2022-12-08 发布日期:2022-12-23
  • 通讯作者: Zhuhong Liu E-mail:zhliu@ustb.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51671024 and 52088101), State Key Lab of Advanced Metals and Materials (Grant No. 2019- Z12), and the Fundamental Research Funds for the Central Universities (Grant No. FRF-BD-20-12A).

Formation of quaternary all-d-metal Heusler alloy by Co doping fcc type Ni2MnV and mechanical grinding induced B2-fcc transformation

Lu Peng(彭璐)1, Qiangqiang Zhang(张强强)1, Na Wang(王娜)1, Zhonghao Xia(夏中昊)1, Yajiu Zhang(张亚九)2, Zhigang Wu(吴志刚)2, Enke Liu(刘恩克)3, and Zhuhong Liu(柳祝红)1,†   

  1. 1 Department of Physics, University of Science and Technology Beijing, Beijing 100083, China;
    2 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
    3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2022-01-01 Revised:2022-03-12 Accepted:2022-03-17 Online:2022-12-08 Published:2022-12-23
  • Contact: Zhuhong Liu E-mail:zhliu@ustb.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51671024 and 52088101), State Key Lab of Advanced Metals and Materials (Grant No. 2019- Z12), and the Fundamental Research Funds for the Central Universities (Grant No. FRF-BD-20-12A).

摘要: The structure of the all-d-metal alloy Ni$_{50-x}$Co$_{x}$Mn$_{25}$V$_{25}$ ($x = 0$-50) is investigated by using theoretical and experimental methods. The first-principles calculations indicate that the most stable structure of the Ni$_{2}$MnV alloy is face-centered cubic (fcc) type structure with ferrimagnetic state and the equilibrium lattice constant is 3.60 Å, which is in agreement with the experimental result. It is remarkable that replacing partial Ni with Co can turn the alloy from the fcc structure to the B2-type Heusler structure as Co content $x > 37$ by using the melting spinning method, implying that the d-d hybridization between Co/Mn elements and low-valent elements V stabilizes the Heusler structure. The Curie temperature $T_{\rm C}$ of all-d-metal Heuser alloy Ni$_{50-x}$Co$_{x}$Mn$_{25}$V$_{25}$ ($x > 37$) increases almost linearly with the increase of Co due to that the interaction of Co-Mn is stronger than that of Ni-Mn. A magnetic transition from ferromagnetic state to weak magnetic state accompanying with grinding stress induced transformation from B2 to the dual-phase of B2 and fcc has been observed in these all-d-metal Heusler alloys. This phase transformation and magnetic change provide a guide to overcome the brittleness and make the all-d-metal Heusler alloy interesting in stress and magnetic driving structural transition.

关键词: all-d-metal Heusler alloy, grinding induced phase transformation, phase stability

Abstract: The structure of the all-d-metal alloy Ni$_{50-x}$Co$_{x}$Mn$_{25}$V$_{25}$ ($x = 0$-50) is investigated by using theoretical and experimental methods. The first-principles calculations indicate that the most stable structure of the Ni$_{2}$MnV alloy is face-centered cubic (fcc) type structure with ferrimagnetic state and the equilibrium lattice constant is 3.60 Å, which is in agreement with the experimental result. It is remarkable that replacing partial Ni with Co can turn the alloy from the fcc structure to the B2-type Heusler structure as Co content $x > 37$ by using the melting spinning method, implying that the d-d hybridization between Co/Mn elements and low-valent elements V stabilizes the Heusler structure. The Curie temperature $T_{\rm C}$ of all-d-metal Heuser alloy Ni$_{50-x}$Co$_{x}$Mn$_{25}$V$_{25}$ ($x > 37$) increases almost linearly with the increase of Co due to that the interaction of Co-Mn is stronger than that of Ni-Mn. A magnetic transition from ferromagnetic state to weak magnetic state accompanying with grinding stress induced transformation from B2 to the dual-phase of B2 and fcc has been observed in these all-d-metal Heusler alloys. This phase transformation and magnetic change provide a guide to overcome the brittleness and make the all-d-metal Heusler alloy interesting in stress and magnetic driving structural transition.

Key words: all-d-metal Heusler alloy, grinding induced phase transformation, phase stability

中图分类号:  (Transition metals and alloys)

  • 71.20.Be
71.20.Lp (Intermetallic compounds) 61.05.cp (X-ray diffraction)