中国物理B ›› 2025, Vol. 34 ›› Issue (7): 77401-077401.doi: 10.1088/1674-1056/adcf8c

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Magnetotransport properties of large-scale PtTe2 Dirac semimetal films grown by pulsed laser deposition

Zhongqiang Chen(陈中强), Zhe Wang(王喆), Kankan Xu(徐侃侃), Xu Zhang(张旭), Ruijie Xu(徐睿劼), and Xuefeng Wang(王学锋)†   

  1. National Key Laboratory of Spintronics, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • 收稿日期:2025-04-11 修回日期:2025-04-17 接受日期:2025-04-23 出版日期:2025-06-18 发布日期:2025-06-18
  • 通讯作者: Xuefeng Wang E-mail:xfwang@nju.edu.cn
  • 基金资助:
    Project supported by the National Key R&D Program of China (Grant No. 2022YFA1402404) and the National Natural Science Foundation of China (Grant Nos. T2394473, 624B2070, and 62274085).

Magnetotransport properties of large-scale PtTe2 Dirac semimetal films grown by pulsed laser deposition

Zhongqiang Chen(陈中强), Zhe Wang(王喆), Kankan Xu(徐侃侃), Xu Zhang(张旭), Ruijie Xu(徐睿劼), and Xuefeng Wang(王学锋)†   

  1. National Key Laboratory of Spintronics, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • Received:2025-04-11 Revised:2025-04-17 Accepted:2025-04-23 Online:2025-06-18 Published:2025-06-18
  • Contact: Xuefeng Wang E-mail:xfwang@nju.edu.cn
  • Supported by:
    Project supported by the National Key R&D Program of China (Grant No. 2022YFA1402404) and the National Natural Science Foundation of China (Grant Nos. T2394473, 624B2070, and 62274085).

摘要: Type-II Dirac semimetal PtTe$_{2}$ is a promising candidate for various electronic device applications due to its high carrier mobility, high conductivity, and air stability. In this work, we report on the growth of large-scale PtTe$_{2}$ films by the pulsed laser deposition (PLD) and the comparison of the magnetotransport properties with the PtTe$_{2}$ films grown by the chemical vapor deposition (CVD). The low-temperature Hall curves of the PLD-grown films exhibit a linear behavior, in contrast with the nonlinear characteristic of the Hall behavior observed in CVD-grown films, in which a defect gradient is introduced. Meanwhile, both PtTe$_{2}$ films show weak antilocalization at low temperatures, which is attributed to the strong spin-orbit coupling.

关键词: PtTe$_{2}$, pulsed laser deposition, magnetotransport properties, thin films

Abstract: Type-II Dirac semimetal PtTe$_{2}$ is a promising candidate for various electronic device applications due to its high carrier mobility, high conductivity, and air stability. In this work, we report on the growth of large-scale PtTe$_{2}$ films by the pulsed laser deposition (PLD) and the comparison of the magnetotransport properties with the PtTe$_{2}$ films grown by the chemical vapor deposition (CVD). The low-temperature Hall curves of the PLD-grown films exhibit a linear behavior, in contrast with the nonlinear characteristic of the Hall behavior observed in CVD-grown films, in which a defect gradient is introduced. Meanwhile, both PtTe$_{2}$ films show weak antilocalization at low temperatures, which is attributed to the strong spin-orbit coupling.

Key words: PtTe$_{2}$, pulsed laser deposition, magnetotransport properties, thin films

中图分类号:  (Multilayers, superlattices, heterostructures)

  • 74.78.Fk
75.30.Gw (Magnetic anisotropy) 75.47.Lx (Magnetic oxides) 75.70.-i (Magnetic properties of thin films, surfaces, and interfaces)