Experimental observation of two types of linear magnetoresistance in topological crystalline insulator heterostructures

被引:8
作者
Wei, Feng [1 ,2 ]
Ma, Song [1 ]
Zhang, Zhidong [1 ]
机构
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
国家重点研发计划;
关键词
topological crystalline insulators; SnTe; linear magnetoresistance; weak antilocalization; heterostructures; SURFACE OXIDATION; TRANSPORT; STATES;
D O I
10.1088/1361-6463/ab1afc
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report magnetotransport studies of topological crystalline insulator (TCI) heterostructures SnTe/PbTe and SnTe/PbTe/SnTe grown by molecular beam epitaxy. A giant linear magnetoresistance up to 1715% was observed in SnTe/PbTe heterostructure, which is correlated with the topological surface states in SnTe. A large linear magnetoresistance (order of 10(2)%) is exhibited in SnTe/PbTe/SnTe heterostructures. The large linear magnetoresistance may be attributed to the structural disorder of SnTe induced by the random arrangement of Pb atoms in SnTe crystalline lattice. The findings of these two types of linear magnetoresistance are of great importance to magnetoelectronics and spintronics based on the TCI heterostructure.
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页数:8
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