Non-saturating quantum magnetization in Weyl semimetal TaAs

doi:10.1038/s41467-019-09012-4

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/117192

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题名:	Non-saturating quantum magnetization in Weyl semimetal TaAs
作者:	Zhang, Cheng-Long;C. M. Wang, Zhujun Yuan;Xu, Xitong;Wang, Guangqiang;Lee, Chi-Cheng;Pi, Li;Xi, Changying;Lin, Hsin;Harrison, Neil;Lu, Hai-Zhou;Zhang, Jinglei;Jia, Shuang
关键词:	Magnetic properties and materials;Topological insulators
日期:	2019-03-04
上传时间:	2019-10-03 12:10:41 (UTC+8)
摘要:	Detecting the spectroscopic signatures of relativistic quasiparticles in emergent topological materials is crucial for searching their potential applications. Magnetometry is a powerful tool for fathoming electrons in solids, by which a clear method for discerning relativistic quasiparticles has not yet been established. Adopting the probes of magnetic torque and parallel magnetization for the archetype Weyl semimetal TaAs in strong magnetic field, we observed a quasi-linear field dependent effective transverse magnetization and a non-saturating parallel magnetization when the system enters the quantum limit. Distinct from the saturating magnetic responses for non-relativistic quasiparticles, the non-saturating signals of TaAs in strong field is consistent with our newly developed magnetization calculation for a Weyl fermion system in an arbitrary angle. Our results establish a high-field thermodynamic method for detecting the magnetic response of relativistic quasiparticles in topological materials.
關聯:	Nature Communications 10, 1028
DOI:	10.1038/s41467-019-09012-4
显示于类别:	[物理學系暨研究所] 期刊論文

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