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Pressure-induced iso-structural phase transition and metallization in WSe2

文献类型：期刊论文

作者Wang, Xuefei1,2; Chen, Xuliang1,2; Zhou, Yonghui1,2; Park, Changyong3; An, Chao1,2; Zhou, Ying1,2; Zhang, Ranran1,2; Gu, Chuanchuan1,2; Yang, Wenge4,5; Yang, Zhaorong1,2,6,7
刊名SCIENTIFIC REPORTS
出版日期2017-05-04
卷号7
DOI10.1038/srep46694
文献子类Article
英文摘要We present in situ high-pressure synchrotron X-ray diffraction (XRD) and Raman spectroscopy study, and electrical transport measurement of single crystal WSe2 in diamond anvil cells with pressures up to 54.0-62.8 GPa. The XRD and Raman results show that the phase undergoes a pressure-induced iso-structural transition via layer sliding, beginning at 28.5 GPa and not being completed up to around 60 GPa. The Raman data also reveals a dominant role of the in-plane strain over the out-of plane compression in helping achieve the transition. Consistently, the electrical transport experiments down to 1.8 K reveals a pressure-induced metallization for WSe2 through a broad pressure range of 28.2-61.7 GPa, where a mixed semiconducting and metallic feature is observed due to the coexisting low-and high-pressure structures.
WOS关键词METAL DICHALCOGENIDES ; INDUCED SUPERCONDUCTIVITY ; ELECTRONIC-PROPERTIES ; MOS2 ; DISELENIDE ; DOME
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000400555600001
资助机构Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; Ministry of Science and Technology of China(2016YFA0401804) ; National Natural Science Foundation of China(11574323 ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33506]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Cond, High Field Magnet Lab, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230031, Peoples R China
3.Carnegie Inst Sci, High Pressure Collaborat Access Team, Geophys Lab, Argonne, IL 60439 USA
4.Ctr High Pressure Sci & Technol Adv Res HPSTAR, Shanghai 201203, Peoples R China
5.Carnegie Inst Sci, High Pressure Synerget Consortium HPSynC, Geophys Lab, Argonne, IL 60439 USA
6.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
7.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xuefei,Chen, Xuliang,Zhou, Yonghui,et al. Pressure-induced iso-structural phase transition and metallization in WSe2[J]. SCIENTIFIC REPORTS,2017,7.
APA Wang, Xuefei.,Chen, Xuliang.,Zhou, Yonghui.,Park, Changyong.,An, Chao.,...&Yang, Zhaorong.(2017).Pressure-induced iso-structural phase transition and metallization in WSe2.SCIENTIFIC REPORTS,7.
MLA Wang, Xuefei,et al."Pressure-induced iso-structural phase transition and metallization in WSe2".SCIENTIFIC REPORTS 7(2017).

入库方式： OAI收割

来源：合肥物质科学研究院

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