Chin. Phys. Lett.  2019, Vol. 36 Issue (7): 077102    DOI: 10.1088/0256-307X/36/7/077102
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Single Crystal Growth and Magnetoresistivity of Topological Semimetal CoSi
D. S. Wu1,2, Z. Y. Mi1,2, Y. J. Li1,2, W. Wu1,2, P. L. Li1,2, Y. T. Song1,2, G. T. Liu1,2,3, G. Li1,2,3**, J. L. Luo1,2,3**
1Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190
3Songshan Lake Materials Laboratory, Dongguan 523808
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Abstract We report single crystal growth of CoSi, which has recently been recognized as a new type of topological semimetal hosting fourfold and sixfold degenerate nodes. The Shubnikov–de Haas quantum oscillation (QO) is observed on our crystals. There are two frequencies originating from almost isotropic bulk electron Fermi surfaces, in accordance with band structure calculations. The effective mass, scattering rate, and QO phase difference of the two frequencies are extracted and discussed.
Received: 07 May 2019      Published: 20 June 2019
PACS:  71.20.Be (Transition metals and alloys)  
  71.18.+y (Fermi surface: calculations and measurements; effective mass, g factor)  
  72.15.-v (Electronic conduction in metals and alloys)  
Fund: Supported by the National Natural Science Foundation of China under Grant No 11874399, and the National Key Research and Development Program of China under Grant No 2016YFA0300602.
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D. S. Wu, Z. Y. Mi, Y. J. Li et al  2019 Chin. Phys. Lett. 36 077102
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http://cpl.iphy.ac.cn/10.1088/0256-307X/36/7/077102       OR      http://cpl.iphy.ac.cn/Y2019/V36/I7/077102
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D. S. Wu
Z. Y. Mi
Y. J. Li
W. Wu
P. L. Li
Y. T. Song
G. T. Liu
G. Li
J. L. Luo
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