Non-saturating quantum magnetization in Weyl semimetal TaAs
學年 107
學期 2
出版（發表）日期 2019-03-04
作品名稱 Non-saturating quantum magnetization in Weyl semimetal TaAs
作品名稱（其他語言）
著者 Cheng-Long Zhang; C. M. Wang, Zhujun Yuan; Xitong Xu; Guangqiang Wang; Chi-Cheng Lee; Li Pi; Changying Xi; Hsin Lin; Neil Harrison; Hai-Zhou Lu; Jinglei Zhang; Shuang Jia
單位
出版者
著錄名稱、卷期、頁數 Nature Communications 10, 1028
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.
關鍵字 Magnetic properties and materials;Topological insulators
語言 en
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 GBR
公開徵稿
出版型式 ,電子版
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