De Haas-van Alphen study on three-dimensional topological semimetal pyrite PtBi2

Wenshuai Gao; Xiangde Zhu; Jin Hu; Shujing Li; Fawei Zheng; Hongwei Zhang; Min Wu; Guolin Zheng; Ning Hao; Ping Zhang; Wei Ning; Mingliang Tian

doi:10.1016/j.scib.2019.08.005

De Haas-van Alphen study on three-dimensional topological semimetal pyrite PtBi₂

Sci Bull (Beijing). 2019 Oct 30;64(20):1496-1501. doi: 10.1016/j.scib.2019.08.005. Epub 2019 Aug 9.

Authors

Wenshuai Gao¹, Xiangde Zhu², Jin Hu³, Shujing Li⁴, Fawei Zheng⁴, Hongwei Zhang⁵, Min Wu⁵, Guolin Zheng⁶, Ning Hao², Ping Zhang⁴, Wei Ning⁷, Mingliang Tian⁸

Affiliations

¹ Institute of Physical Science and Information Technology, School of Physics and Materials Science, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China; Department of Physics, University of Science and Technology of China, Hefei 230026, China.
² Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China.
³ Department of Physics, Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR 72701, USA.
⁴ Institute of Applied Physics and Computational Mathematics, Beijing 100088, China.
⁵ Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China; Department of Physics, University of Science and Technology of China, Hefei 230026, China.
⁶ Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China; Department of Physics, University of Science and Technology of China, Hefei 230026, China; Schoo of Science, RMIT University, Melbourne, VIC3001, Australia.
⁷ Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China. Electronic address: ningwei@hmfl.ac.cn.
⁸ Institute of Physical Science and Information Technology, School of Physics and Materials Science, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China; Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China. Electronic address: tianml@hmfl.ac.cn.

PMID: 36659557
DOI: 10.1016/j.scib.2019.08.005

Abstract

We present the systematic de Haas-van Alphen (dHvA) quantum oscillations studies on the recently discovered topological Dirac semimetal pyrite PtBi₂ single crystals. Remarkable dHvA oscillations are emerged at a low field about 1.5 T. From the analyses of the dHvA oscillations, we extract the high quantum mobilities, light effective masses and phase shift factors for the Dirac fermions in pyrite PtBi₂. From the angular dependence of the dHvA oscillations, we map out the topology of the Fermi surface. Furthermore, we identify two additional oscillation frequencies that are not probed by the SdH oscillations, which provides us with opportunities to further understand its Fermi surface topology.

Keywords: De Haas–van Alphen effect; Fermi surface topology; Pyrite PtBi(2); Topological semimetal.