Quantum Oscillations and Electronic Structure in the Large-Chern-Number Topological Chiral Semimetal PtGa

徐升; 周丽琴; 王小艳; 王欢; 林浚发; 曾祥雨; 程鹏; 翁红明; 夏天龙

首页> 中文期刊> 《中国物理快报：英文版》 >Quantum Oscillations and Electronic Structure in the Large-Chern-Number Topological Chiral Semimetal PtGa

Quantum Oscillations and Electronic Structure in the Large-Chern-Number Topological Chiral Semimetal PtGa

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

We report the magnetoresistance(MR),de Haas-van Alphen(dHvA) oscillations and the electronic structures of single-crystal PtGa.The large unsaturated MR is observed with the magnetic field B ‖ [111].Evident dHvA oscillations with the B ‖ [001] configuration are observed,from which twelve fundamental frequencies are extracted and the spin-orbit coupling(SOC) induced band splitting is revealed.The light cyclotron effective masses are extracted from the fitting by the thermal damping term of the Lifshitz-Kosevich formula.Combining with the calculated frequencies from the first-principles calculations,the dHvA frequencies F1/F3 and F11/F12are confirmed to originate from the electron pockets at F and R,respectively.The first-principles calculations also reveal the existence of spin-3/2 Rarita-Schwinger-Weyl fermions and time-reversal doubling of the spin-1 excitation at Γ and R with large Chern numbers of ±4 when SOC is included.

著录项

来源
《中国物理快报：英文版》 |2020年第10期|103-107|共5页
作者
徐升; 周丽琴; 王小艳; 王欢; 林浚发; 曾祥雨; 程鹏; 翁红明; 夏天龙;
展开▼
作者单位

Department of Physics;

Renmin University of China;

Beijing 100872;

China;

Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices;

Renmin University of China;

Beijing 100872;

China;

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics;

Chinese Academy of Sciences;

Beijing 100190;

China;

CAS Center for Excellence in Topological Quantum Computation;

University of Chinese Academy of Sciences;

Beijing 100049;

China;

Songshan Lake Materials Laboratory;

Dongguan 523808;

China;

展开▼
原文格式 PDF
正文语种 chi
中图分类凝聚态物理学;
关键词
doubling; Chiral; excitation;

相似文献

中文文献
外文文献
专利

1. Electronic structure of correlated topological insulator candidate YbB6 studied by photoemission and quantum oscillation [J] . 张腾 ,李岗 ,孙淑翠 . 中国物理：英文版 . 2020,第1期
2. Structural, elastic, and electronic properties of topological semimetal WC-type MX family by first-principles calculation [J] . Sami Ullah ,王磊 ,李江旭 . 中国物理：英文版 . 2019,第7期
3. Topological edge states and electronic structures of a 2D topological insulator: Single-bilayer Bi (111) [J] . 高春雷 ,钱冬 ,刘灿华 . 中国物理：英文版 . 2013,第6期
4. Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi [J] . 曹渭征 ,苏云龙 ,王琦 . 中国物理快报：英文版 . 2022,第4期
5. Study on the Cognitive Topological Structure of Driver [C] . Wang Bin . 2008年全国博士生学术论坛（航空宇航科学与技术） . 2008
6. First-Principles Study of Electronic and Magnetic Properties of AA'FeReO and LaNaRuO Double Perovskite Structures. [A] . Ahmed Saeed Ahmed Abdalla . 2007

Quantum Oscillations and Electronic Structure in the Large-Chern-Number Topological Chiral Semimetal PtGa

摘要

著录项

相似文献

相关主题

期刊订阅