Intrinsic diamagnetism in the Weyl semimetal TaAs

Yu Liu; Zhilin Li; Liwei Guo; Xiaolong Chen; Ye Yuan; Fang Liu; Slawomir Prucnal; Manfred Helm; Shengqiang Zhou

doi:10.1016/j.jmmm.2016.01.100

Intrinsic diamagnetism in the Weyl semimetal TaAs

Materials Science 2016-02-23 v3

Authors: Yu Liu , Zhilin Li , Liwei Guo , Xiaolong Chen , Ye Yuan , Fang Liu , Slawomir Prucnal , Manfred Helm , Shengqiang Zhou

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Abstract

We investigate the magnetic properties of TaAs, a prototype Weyl semimetal. TaAs crystals show weak diamagnetism with magnetic susceptibility of about -7 * 10^{-7} emu/(g*Oe) at 5 K. A general feature is the appearance of a minimum at around 185 K in magnetization measurements as a function of temperature. No phase transition is observed in the temperature range between 5 K and 400 K. The magnetic properties indicate that the intrinsic Fermi level in TaAs is not located at the Weyl nodes, in agreement with the theory prediction.

Keywords

Weyl semimetal TaAs intrinsic diamagnetism magnetic susceptibility Fermi level Weyl nodes magnetization measurement

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@article{arxiv.1510.08497,
  title  = {Intrinsic diamagnetism in the Weyl semimetal TaAs},
  author = {Yu Liu and Zhilin Li and Liwei Guo and Xiaolong Chen and Ye Yuan and Fang Liu and Slawomir Prucnal and Manfred Helm and Shengqiang Zhou},
  journal= {arXiv preprint arXiv:1510.08497},
  year   = {2016}
}

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12 pages, 4 figures

Intrinsic diamagnetism in the Weyl semimetal TaAs

Abstract

Keywords

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