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| Composition and temperature-dependent phase transition in miscible Mo1-xWxTe2 single crystals | |
| 2017-03-15 | |
| Source Publication | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| Volume | 7 |
| Status | 已发表 |
| DOI | 10.1038/srep44587 |
| Abstract | Transition metal dichalcogenides (TMDs) WTe2 and MoTe2 with orthorhombic Td phase, being potential candidates as type-II Weyl semimetals, are attracted much attention recently. Here we synthesized a series of miscible Mo1-xWxTe2 single crystals by bromine vapor transport method. Composition-dependent X-ray diffraction and Raman spectroscopy, as well as composition and temperature-dependent resistivity prove that the tunable crystal structure (from hexagonal (2H), monoclinic (beta) to orthorhombic (Td) phase) can be realized by increasing W content in Mo1-xWxTe2. Simultaneously the electrical property gradually evolves from semiconductor to semimetal behavior. Temperature-dependent Raman spectroscopy proves that temperature also can induce the structural phase transition from beta to Td phase in Mo1-xWxTe2 crystals. Based on aforementioned characterizations, we map out the temperature and composition dependent phase diagram of Mo1-xWxTe2 system. In addition, a series of electrical parameters, such as carrier type, carrier concentration and mobility, have also been presented. This work offers a scheme to accurately control structural phase in Mo1-xWxTe2 system, which can be used to explore type-II Weyl semimetal, as well as temperature/composition controlled topological phase transition therein. |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Graduate Innovation Fund of Nanjing University[2015CL11] |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:000396342100001 |
| Publisher | NATURE PUBLISHING GROUP |
| WOS Keyword | WEYL FERMION SEMIMETAL ; MAGNETORESISTANCE ; STATE ; SUPERCONDUCTIVITY ; RESISTIVITY ; DISCOVERY ; MOTE2 |
| Original Document Type | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1470 |
| Collection | 物质科学与技术学院_特聘教授组_陈宇林 |
| Corresponding Author | Yao, Shu-Hua; Zhou, Jian; Chen, Y. B. |
| Affiliation | 1.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 4.Jiangsu Univ Sci & Technol, Inst Mat Sci & Engn, Zhenjiang 212003, Peoples R China 5.Nanjing Tech Univ, IAM, Nanjing 211800, Jiangsu, Peoples R China 6.Nanjing Tech Univ, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 211800, Jiangsu, Peoples R China 7.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 8.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China 9.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 10.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China |
| Recommended Citation GB/T 7714 | Lv, Yang-Yang,Cao, Lin,Li, Xiao,et al. Composition and temperature-dependent phase transition in miscible Mo1-xWxTe2 single crystals[J]. SCIENTIFIC REPORTS,2017,7. |
| APA | Lv, Yang-Yang.,Cao, Lin.,Li, Xiao.,Zhang, Bin-Bin.,Wang, Kang.,...&Chen, Yan-Feng.(2017).Composition and temperature-dependent phase transition in miscible Mo1-xWxTe2 single crystals.SCIENTIFIC REPORTS,7. |
| MLA | Lv, Yang-Yang,et al."Composition and temperature-dependent phase transition in miscible Mo1-xWxTe2 single crystals".SCIENTIFIC REPORTS 7(2017). |
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