Broken mirror symmetry tuned topological transport in PbTe/SnTe heterostructures

doi:10.1103/PhysRevB.98.161301

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	Broken mirror symmetry tuned topological transport in PbTe/SnTe heterostructures
	Wei, F ; Liu, CW ; Li, D ; Wang, CY ; Zhang, HR ; Sun, JR ; Gao, XPA ; Ma, S ; Zhang, ZD
刊名	PHYSICAL REVIEW B
	2018-10-09
卷号	98 期号:16 页码:-
ISSN号	2469-9950
DOI	10.1103/PhysRevB.98.161301
英文摘要	The tunability of topological surface states and the controllable opening of the Dirac gap are two keys for the study of topological crystalline insulators (TCIs). By constructing PbTe/SnTe heterostructures, we discover giant linear magnetoresistance (GLMR) (2150% under a magnetic field of 14 T at 2 K) and strong metallic behavior that are likely induced by Dirac fermions with a high carrier mobility. By decreasing the hole density in SnTe, a much weaker metallic behavior and two-dimensional weak antilocalization are exhibited in PbTe/SnTe heterostructures. This striking transport difference is attributed to the cubic-rhombohedral structural phase transition in SnTe and broken mirror symmetry effect. The revelation of lattice structural distortion and mirror symmetry breaking in a PbTe/SnTe heterostructure's transport properties is very significant to the fundamental research in topological matter, magnetoelectronics, and spintronics.
学科主题	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
语种	英语
WOS记录号	WOS:000446903500003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79904]
专题	金属研究所_中国科学院金属研究所
作者单位	1.[Wei, Feng 2.Li, Da 3.Wang, Chun-Yang 4.Ma, Song 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 6.[Wei, Feng 7.Wang, Chun-Yang 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 9.[Liu, Chieh-Wen 10.Gao, Xuan P. A.] Case Western Reserve Univ, Dept Phys, 2076 Adelbert Rd, Cleveland, OH 44106 USA
推荐引用方式 GB/T 7714	Wei, F,Liu, CW,Li, D,et al. Broken mirror symmetry tuned topological transport in PbTe/SnTe heterostructures[J]. PHYSICAL REVIEW B,2018,98(16):-.
APA	Wei, F.,Liu, CW.,Li, D.,Wang, CY.,Zhang, HR.,...&Zhang, ZD.(2018).Broken mirror symmetry tuned topological transport in PbTe/SnTe heterostructures.PHYSICAL REVIEW B,98(16),-.
MLA	Wei, F,et al."Broken mirror symmetry tuned topological transport in PbTe/SnTe heterostructures".PHYSICAL REVIEW B 98.16(2018):-.