Single Crystal Growth and Magnetoresistivity of Topological Semimetal CoSi

被引：31
|
作者：
Wu, D. S. [1 ,2 ,3 ]
Mi, Z. Y. [1 ,2 ,3 ]
Li, Y. J. [1 ,2 ,3 ]
Wu, W. [1 ,2 ,3 ]
Li, P. L. [1 ,2 ,3 ]
Song, Y. T. [1 ,2 ,3 ]
Liu, G. T. [1 ,2 ,3 ,4 ]
Li, G. [1 ,2 ,3 ,4 ]
Luo, J. L. [1 ,2 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[3] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China
[4] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2019年 / 36卷 / 07期
基金：
中国国家自然科学基金;
关键词：
ALLOYS;
D O I：
10.1088/0256-307X/36/7/077102
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：5
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