Electron scattering in tantalum monoarsenide
Zhang, Cheng-Long · Yuan, Zhujun · Jiang, Qing-Dong · Tong, Bingbing · Zhang, Chi · Xie, X. C. · Jia, Shuang
Original · EN
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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