Non-centrosymmetric topological phase probed by non-linear Hall effect

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外文摘要：Non-centrosymmetric topological material has attracted intense attention due to its superior characteristics as compared with the centrosymmetric one,although probing the local quantum geometry in non-centrosymmetric topological material remains challenging.The non-linear Hall(NLH)effect provides an ideal tool to investigate the local quantum geometry.Here,we report a non-centrosymmetric topological phase in ZrTe5,probed by using the NLH effect.The angle-resolved and temperature-dependent NLH measurement reveals the inversion and ab-plane mirror symmetries breaking at＜30 K,consistently with our theoretical calculation.Our findings identify a new non-centrosymmetric phase of ZrTe5 and provide a platform to probe and control local quantum geometry via crystal symmetries.

外文关键词：

non-linear Hall effecttopological insulatorZrTe5

作者：

Naizhou Wang、Jing-Yang You、Aifeng Wang、Xiaoyuan Zhou、Zhaowei Zhang、Shen Lai、Yuan-Ping Feng、Hsin Lin、Guoqing Chang、Wei-bo Gao

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作者单位：

Division of Physics and Applied Physics,School of Physical and Mathematical Sciences,Nanyang Technological University,Singapore 637371

Department of Physics,National University of Singapore,Singapore 117551

Low Temperature Physics Laboratory,College of Physics and Center for Quantum Materials and Devices,Chongqing University,Chongqing 401331

Centre for Advanced 2D Materials,National University of Singapore,Singapore 117546

Institute of Physics,Academia Sinica,Taipei 11529

The Photonics Institute and Centre for Disruptive Photonic Technologies,Nanyang Technological University,Singapore 637371

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基金：

Singapore National Research Foundation through its Competitive Research ProgramSingapore National Research Foundation through its Competitive Research ProgramQEP program,Singapore Ministry of EducationNational Research Foundation,Singapore under its Fellowship AwardNanyang Assistant Professorship grant from Nanyang Technological UniversityMinistry of Education,Singapore under its MOE AcRF Tier 3National Natural Science Foundation of ChinaNational Natural Science Foundation of China&&

项目编号：

NRF-CRP21-2018-0007NRF-CRP22-2019-0004MOE2016-T3-1-006SNRF-NRFF13-2021-0010MOE2018-T3-1-0021200405652071041109-2112-M-001-014-MY3

出版年：

2024

DOI：

10.1093/nsr/nwad103

国家科学评论(英文版)

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ISSN：

年,卷(期)：2024.11(6)