Granularity Controlled Nonsaturating Linear Magnetoresistance in Topological Insulator Bi2Te3 Films

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	Granularity Controlled Nonsaturating Linear Magnetoresistance in Topological Insulator Bi2Te3 Films
	Z. H. Wang; L. Yang; X. J. Li; X. T. Zhao; H. L. Wang; Z. D. Zhang; X. P. A. Gao
	2014
发表期刊	Nano Letters
ISSN	1530-6984
卷号	14 期号:11 页码:6510-6514
摘要	We report on the magnetotransport properties of chemical vapor deposition grown films of interconnected Bi2Te3 nanoplates. Similar to many other topological insulator (TI) materials, these granular Bi2Te3 films exhibit a linear magnetoresistance (LMR) effect which has received much recent attention. Studying samples with different degree of granularity, we find a universal correlation between the magnitude of the LMR and the average mobility (mu) of the films over nearly 2 orders of magnitude change of mu . The granularity controlled LMR effect here is attributed to the mobility fluctuation induced classical LMR according to the Parish-Littlewood theory. These findings have implications to both the fundamental understanding and magnetoresistive device applications of TI and small bandgap semiconductor materials.
部门归属	[wang, z. h. ; yang, l. ; li, x. j. ; zhao, x. t. ; wang, h. l. ; zhang, z. d.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [gao, xuan p. a.] case western reserve univ, dept phys, cleveland, oh 44106 usa. ; zhang, zd (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; zdzhang@imr.ac.cn ; xuan.gao@case.edu
关键词	Topological Insulator Nanoplate Magnetoresistance Granularity Thin Film Surface Conduction Quantum
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73435
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. H. Wang,L. Yang,X. J. Li,et al. Granularity Controlled Nonsaturating Linear Magnetoresistance in Topological Insulator Bi2Te3 Films[J]. Nano Letters,2014,14(11):6510-6514.
APA	Z. H. Wang.,L. Yang.,X. J. Li.,X. T. Zhao.,H. L. Wang.,...&X. P. A. Gao.(2014).Granularity Controlled Nonsaturating Linear Magnetoresistance in Topological Insulator Bi2Te3 Films.Nano Letters,14(11),6510-6514.
MLA	Z. H. Wang,et al."Granularity Controlled Nonsaturating Linear Magnetoresistance in Topological Insulator Bi2Te3 Films".Nano Letters 14.11(2014):6510-6514.