Non-Drude Magneto-Transport Behavior in a Topological Crystalline Insulator/Band Insulator Heterostructure
文献类型：期刊论文
| 作者 | Liu, Chieh-Wen3; Wei, Feng1,2; Premasiri, Kasun3; Liu, Shuhao3; Ma, Song1; Zhang, Zhidong1; Gao, Xuan P. A.3 |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 18期号:10页码:6538-6543 |
| 关键词 | Magneto-transport Drude model topological insulator linear magneto-resistance |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/acs.nanolett.8b03113 |
| 通讯作者 | Ma, Song(songma@imr.ac.cn) ; Gao, Xuan P. A.(xuan.gao@case.edu) |
| 英文摘要 | The Drude model is one of the most fundamental models used to understand the electronic carrier transport in materials, including recently discovered topological materials. Here, we present a magneto-transport study revealing the non-Drude transport behavior in a heterostructure of topological crystalline insulator (TCI) SnTe and band insulator PbTe which exhibits a nonsaturating linear magneto-resistance (MR) effect, a novel phenomenon widely observed in topological materials with gapless dispersion. It is shown that in the van der Pauw geometry in which the longitudinal and transverse magneto-resistances are measured to extract the magneto-conductivity, the two-band Drude model is not sufficient to self-consistently describe both the longitudinal and transverse magneto-conductivities. Furthermore, in the Corbino geometry, which directly measures the longitudinal magneto-conductivity sigma(xx)(B) for a straightforward comparison with the Drude model, the MR, 1/sigma(xx)(B), still reveals a large linear MR effect, in direct discrepancy with the Drude model. While shining further light on the multiple-carrier transport in TCI, this study highlights an unusual magneto-transport character of topological materials that challenges the standard Drude picture of electron transport. |
| 资助项目 | NSF[DMR-1607631] ; Natural Science Foundation of China (NSFC)[51571195] ; Natural Science Foundation of China (NSFC)[51331006] ; Natural Science Foundation of China (NSFC)[51590883] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000447355400060 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | NSF ; Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/129691]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ma, Song; Gao, Xuan P. A. |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Case Western Reserve Univ, Dept Phys, 2076 Adelbert Rd, Cleveland, OH 44106 USA |
| 推荐引用方式 GB/T 7714 | Liu, Chieh-Wen,Wei, Feng,Premasiri, Kasun,et al. Non-Drude Magneto-Transport Behavior in a Topological Crystalline Insulator/Band Insulator Heterostructure[J]. NANO LETTERS,2018,18(10):6538-6543. |
| APA | Liu, Chieh-Wen.,Wei, Feng.,Premasiri, Kasun.,Liu, Shuhao.,Ma, Song.,...&Gao, Xuan P. A..(2018).Non-Drude Magneto-Transport Behavior in a Topological Crystalline Insulator/Band Insulator Heterostructure.NANO LETTERS,18(10),6538-6543. |
| MLA | Liu, Chieh-Wen,et al."Non-Drude Magneto-Transport Behavior in a Topological Crystalline Insulator/Band Insulator Heterostructure".NANO LETTERS 18.10(2018):6538-6543. |
入库方式： OAI收割
来源：金属研究所
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