气候变化领域集成服务门户(CCPortal): Pressure-induced topological phase transition in noncentrosymmetric elemental tellurium

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DOI	10.1073/pnas.1905524116
	Pressure-induced topological phase transition in noncentrosymmetric elemental tellurium
	Ideue T.; Hirayama M.; Taiko H.; Takahashi T.; Murase M.; Miyake T.; Murakami S.; Sasagawa T.; Iwasa Y.
发表日期	2019
ISSN	0027-8424
起始页码	25530
结束页码	25534
卷号	116 期号:51
英文摘要	Recent progress in understanding the electronic band topology and emergent topological properties encourage us to reconsider the band structure of well-known materials including elemental substances. Controlling such a band topology by external field is of particular interest from both fundamental and technological viewpoints. Here we report possible signatures of the pressure-induced topological phase transition from a semiconductor to a Weyl semimetal in elemental tellurium probed by transport measurements. Pressure variation of the periods of Shubnikov–de Haas oscillations, as well as oscillation phases, shows an anomaly around the pressure theoretically predicted for topological phase transition. This behavior is consistent with the pressure-induced band deformation and resultant band-crossing effect. Moreover, effective cyclotron mass is reduced toward the critical pressure, potentially reflecting the emergence of massless linear dispersion. The present result paves the way for studying the electronic band topology in well-known compounds and topological phase transition by the external field. © 2019 National Academy of Sciences. All rights reserved.
英文关键词	SdH oscillations; Tellurium; Topological phase transition; Weyl semimetal
语种	英语
scopus关键词	tellurium; Article; camelback like valence band dispersion; constants and coefficients; crystal structure; dispersion; Hall coefficient; magnetic field; mass; oscillation; phase transition; pressure; priority journal; Shubnikov de Haas oscillation; temperature
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160328
作者单位	Ideue, T., Quantum-Phase Electronics Center, University of Tokyo, Tokyo, 113-8656, Japan; Hirayama, M., RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan; Taiko, H., Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan; Takahashi, T., Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan; Murase, M., Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan; Miyake, T., Research Center for Computational Design of Advanced Functional Materials, National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan; Murakami, S., Department of Physics, Tokyo Institute of Technology, Tokyo, 152-8551, Japan, Tokodai Institute for Element Strategy, Tokyo Institute of Technology, Tokyo, 152-8551, Japan; Sasagawa, T., Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan; Iwasa, Y., Quantum-Phas...
推荐引用方式 GB/T 7714	Ideue T.,Hirayama M.,Taiko H.,et al. Pressure-induced topological phase transition in noncentrosymmetric elemental tellurium[J],2019,116(51).
APA	Ideue T..,Hirayama M..,Taiko H..,Takahashi T..,Murase M..,...&Iwasa Y..(2019).Pressure-induced topological phase transition in noncentrosymmetric elemental tellurium.Proceedings of the National Academy of Sciences of the United States of America,116(51).
MLA	Ideue T.,et al."Pressure-induced topological phase transition in noncentrosymmetric elemental tellurium".Proceedings of the National Academy of Sciences of the United States of America 116.51(2019).