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Single crystal growth and magnetoresistivity study of topological semimetal CoSi

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arxiv 1906.06082 v1 pith:AVSIFXBS submitted 2019-06-14 cond-mat.mtrl-sci

Single crystal growth and magnetoresistivity study of topological semimetal CoSi

classification cond-mat.mtrl-sci
keywords cosicrystalfrequenciesgrowthsemimetalsingletopologicalaccordance
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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