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Electron scattering in tantalum monoarsenide

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arxiv 1702.01245 v1 pith:I7TZ6VZW submitted 2017-02-04 cond-mat.mtrl-sci

Electron scattering in tantalum monoarsenide

Cheng-Long Zhang , Zhujun Yuan , Qing-Dong Jiang , Bingbing Tong , Chi Zhang , X. C. Xie , Shuang Jia This is my paper
classification cond-mat.mtrl-sci
keywords transportweyllifetimesamplesscatteringsemimetalanalysisapproaches
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We report comprehensive studies of the single crystal growth and electrical transport properties for various samples of TaAs, the first experimentally confirmed inversion symmetry-breaking Weyl semimetal. The transport parameters for different samples are obtained through the fitting of the two band model and the analysis of Shubnikov de Haas oscillations. We find that the ratio factor of transport lifetime to quantum lifetime is intensively enhanced when the Fermi level approaches the Weyl node. This result is consistent with the side-jump interpretation derived from a chirality-protected shift in the scattering process for a Weyl semimetal.

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