| From linear magnetoresistance to parabolic magnetoresistance in Cu and Cr-doped topological insulator Bi2Se3 films | |
| Li, Mingze1,2; Wang, Zhenhua1,2; Yang, Liang1,2; Gao, Xuan P. A.3; Zhang, Zhidong1,2 | |
| Corresponding Author | Wang, Zhenhua(zhwang@imr.ac.cn) ; Gao, Xuan P. A.(xuan.gao@case.edu) |
| 2019-05-01 | |
| Source Publication | JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
 |
| ISSN | 0022-3697 |
| Volume | 128Pages:331-336 |
| Abstract | We report on the magnetotransport properties of Cu- and Cr-doped topological insulator Bi2Se3 films grown on silicon (100) substrate by chemical vapor deposition. Upon doping of non-magnetic Cu, Bi2Se3 film's carrier density is reduced and the magnetoresistance changes from a strong positive parabolic magnetoresistance to a linear magnetoresistance. This linear magnetoresistance is similar to the linear magnetoresistance in other gapless topological states of matter and has a strong temperature dependence. In contrast, the magnetoresistance of Crdoped Bi2Se3 films remains to be parabolic and becomes temperature independent upon increased Cr-doping. These results suggest that the absence of linear magnetoresistance in Cr-doped Bi2Se3 is related to the magnetic dopants that induce time reversal symmetry breaking and surface states gap opening. |
| Keyword | Topological insulator Bismuth selenide Magnetoresistance Magnetic doping Thin film |
| Funding Organization | National Natural Science Foundation of China ; National Basic Research Program ; National Science Foundation |
| DOI | 10.1016/j.jpcs.2017.07.003 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51522104] ; National Natural Science Foundation of China[51331006] ; National Basic Research Program[2017YFA0206302] ; National Science Foundation[DMR-1151534] |
| WOS Research Area | Chemistry ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Physics, Condensed Matter |
| WOS ID | WOS:000472693100037 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/133969 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Zhenhua; Gao, Xuan P. A. |
| Affiliation | 1.Univ Sci & Technol China, Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA |
| Recommended Citation GB/T 7714 | Li, Mingze,Wang, Zhenhua,Yang, Liang,et al. From linear magnetoresistance to parabolic magnetoresistance in Cu and Cr-doped topological insulator Bi2Se3 films[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2019,128:331-336. |
| APA | Li, Mingze,Wang, Zhenhua,Yang, Liang,Gao, Xuan P. A.,&Zhang, Zhidong.(2019).From linear magnetoresistance to parabolic magnetoresistance in Cu and Cr-doped topological insulator Bi2Se3 films.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,128,331-336. |
| MLA | Li, Mingze,et al."From linear magnetoresistance to parabolic magnetoresistance in Cu and Cr-doped topological insulator Bi2Se3 films".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 128(2019):331-336. |
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