中国物理B ›› 2025, Vol. 34 ›› Issue (1): 17502-017502.doi: 10.1088/1674-1056/ad9735

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Moderate electron-spin interaction in Fe-intercalated NbSe2

Qiao-Yu Liu(刘乔宇)1,2, Jian-Li Bai(白建利)1,2, Qing-Xin Dong(董庆新)1,2, Li-Bo Zhang(张黎博)1,2, Jing-Wen Cheng(程靖雯)1,2, Pin-Yu Liu(刘品宇)1,2, Cun-Dong Li(李存东)1,2, Yu Huang(黄宇)1,2, Ying-Rui Sun(孙英睿)1,2, Zhi-An Ren(任治安)1,2, and Gen-Fu Chen(陈根富)1,2,3,†   

  1. 1 Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 收稿日期:2024-10-18 修回日期:2024-11-15 接受日期:2024-11-26 发布日期:2024-12-31
  • 通讯作者: Gen-Fu Chen E-mail:gfchen@iphy.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 12274440), the National Key R&D Program of China (Grant No. 2022YFA1403903), the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB33010100), and the Fund of the Synergetic Extreme Condition User Facility (SECUF).

Moderate electron-spin interaction in Fe-intercalated NbSe2

Qiao-Yu Liu(刘乔宇)1,2, Jian-Li Bai(白建利)1,2, Qing-Xin Dong(董庆新)1,2, Li-Bo Zhang(张黎博)1,2, Jing-Wen Cheng(程靖雯)1,2, Pin-Yu Liu(刘品宇)1,2, Cun-Dong Li(李存东)1,2, Yu Huang(黄宇)1,2, Ying-Rui Sun(孙英睿)1,2, Zhi-An Ren(任治安)1,2, and Gen-Fu Chen(陈根富)1,2,3,†   

  1. 1 Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • Received:2024-10-18 Revised:2024-11-15 Accepted:2024-11-26 Published:2024-12-31
  • Contact: Gen-Fu Chen E-mail:gfchen@iphy.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 12274440), the National Key R&D Program of China (Grant No. 2022YFA1403903), the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB33010100), and the Fund of the Synergetic Extreme Condition User Facility (SECUF).

摘要: The interaction between charge and spin degrees of freedom has always been the central issue of condensed matter physics, and transition metal dichalcogenides (TMDs) provide an ideal platform to study it benefiting from their highly tunable properties. In this article, the influence of Fe intercalation in NbSe$_{2}$ was elaborately investigated using a combination of techniques. Magnetic studies have shown that the insertion of Fe atoms induces an antiferromagnetic state in which the easy axis aligns out of the plane. The sign reversal of the magnetoresistance across the Neel temperature can be satisfactorily explained by the moderate interaction between electrons and local spins. The Hall and Seebeck measurements reveal a multi-band nature, and the contribution of various phonon scattering processes is discussed based on the thermal conductivity and specific heat data.

关键词: transition metal dichalcogenide, intercalation, spin-electron interaction

Abstract: The interaction between charge and spin degrees of freedom has always been the central issue of condensed matter physics, and transition metal dichalcogenides (TMDs) provide an ideal platform to study it benefiting from their highly tunable properties. In this article, the influence of Fe intercalation in NbSe$_{2}$ was elaborately investigated using a combination of techniques. Magnetic studies have shown that the insertion of Fe atoms induces an antiferromagnetic state in which the easy axis aligns out of the plane. The sign reversal of the magnetoresistance across the Neel temperature can be satisfactorily explained by the moderate interaction between electrons and local spins. The Hall and Seebeck measurements reveal a multi-band nature, and the contribution of various phonon scattering processes is discussed based on the thermal conductivity and specific heat data.

Key words: transition metal dichalcogenide, intercalation, spin-electron interaction

中图分类号:  (Antiferromagnetics)

  • 75.50.Ee
73.50.Lw (Thermoelectric effects) 73.43.Qt (Magnetoresistance) 63.20.K- (Phonon interactions)