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  4. 中科院固体物理研究所
Charge Density Wave States and Structural Transition in Layered Chalcogenide TaSe2-xTex

文献类型：期刊论文

作者Wei, Lin-Lin1,2; Sun, Shuai-Shuai1; Sun, Kai1,2; Liu, Yu3; Shao, Ding-Fu3; Lu, Wen-Jian3; Sun, Yu-Ping3,4; Tian, Huan-Fang1; Yang, Huai-Xin1,2
刊名CHINESE PHYSICS LETTERS
出版日期2017-07-01
卷号34期号:8页码:1-6
DOI10.1088/0256-307X/34/8/086101
文献子类Article
英文摘要The structural features and three-dimensional nature of the charge density wave (CDW) state of the layered chalcogenide 1T-TaSe2 - x Te-x (0 <= x <= 2.0) are characterized by Cs-corrected transmission electron microscopy measurements. Notable changes of both average structure and the CDW state arising from Te substitution for Se are clearly demonstrated in samples with x > 0.3. The commensurate CDW state characterized by the known star-of-David clustering in the 1T-TaSe2 crystal becomes visibly unstable with Te substitution and vanishes when x = 0.3. The 1T-TaSe2 (- x) Te-x (0.3 <= x <= 1.3) samples generally adopt a remarkable incommensurate CDW state with monoclinic distortion, which could be fundamentally in correlation with the strong d-dependent electron-phonon coupling-induced period-lattice-distortion as identified in TaTe2. Systematic analysis demonstrates that the occurrence of superconductivity is related to the suppression of the commensurate CDW phase and the presence of discommensuration is an evident structural feature observed in the superconducting samples.
WOS关键词METAL DICHALCOGENIDES ; SUPERCONDUCTIVITY
WOS研究方向Physics
语种英语
WOS记录号WOS:000412909200026
资助机构National Basic Research Program of China(2015CB921300 ; National Basic Research Program of China(2015CB921300 ; National Basic Research Program of China(2015CB921300 ; National Basic Research Program of China(2015CB921300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Natural Science Foundation of China(11474323 ; National Natural Science Foundation of China(11474323 ; National Natural Science Foundation of China(11474323 ; National Natural Science Foundation of China(11474323 ; Chinese Academy of Sciences(XDB07020000) ; Chinese Academy of Sciences(XDB07020000) ; Chinese Academy of Sciences(XDB07020000) ; Chinese Academy of Sciences(XDB07020000) ; 2012CB821404) ; 2012CB821404) ; 2012CB821404) ; 2012CB821404) ; 2016YFA0300404) ; 2016YFA0300404) ; 2016YFA0300404) ; 2016YFA0300404) ; 11604372 ; 11604372 ; 11604372 ; 11604372 ; 11274368 ; 11274368 ; 11274368 ; 11274368 ; 91221102 ; 91221102 ; 91221102 ; 91221102 ; 11190022 ; 11190022 ; 11190022 ; 11190022 ; 11674326 ; 11674326 ; 11674326 ; 11674326 ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; National Basic Research Program of China(2015CB921300 ; National Basic Research Program of China(2015CB921300 ; National Basic Research Program of China(2015CB921300 ; National Basic Research Program of China(2015CB921300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Natural Science Foundation of China(11474323 ; National Natural Science Foundation of China(11474323 ; National Natural Science Foundation of China(11474323 ; National Natural Science Foundation of China(11474323 ; Chinese Academy of Sciences(XDB07020000) ; Chinese Academy of Sciences(XDB07020000) ; Chinese Academy of Sciences(XDB07020000) ; Chinese Academy of Sciences(XDB07020000) ; 2012CB821404) ; 2012CB821404) ; 2012CB821404) ; 2012CB821404) ; 2016YFA0300404) ; 2016YFA0300404) ; 2016YFA0300404) ; 2016YFA0300404) ; 11604372 ; 11604372 ; 11604372 ; 11604372 ; 11274368 ; 11274368 ; 11274368 ; 11274368 ; 91221102 ; 91221102 ; 91221102 ; 91221102 ; 11190022 ; 11190022 ; 11190022 ; 11190022 ; 11674326 ; 11674326 ; 11674326 ; 11674326 ; 91422303) ; 91422303) ; 91422303) ; 91422303)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33790]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
4.Chinese Acad Sci, High Magnet Lab, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Lin-Lin,Sun, Shuai-Shuai,Sun, Kai,et al. Charge Density Wave States and Structural Transition in Layered Chalcogenide TaSe2-xTex[J]. CHINESE PHYSICS LETTERS,2017,34(8):1-6.
APA Wei, Lin-Lin.,Sun, Shuai-Shuai.,Sun, Kai.,Liu, Yu.,Shao, Ding-Fu.,...&Yang, Huai-Xin.(2017).Charge Density Wave States and Structural Transition in Layered Chalcogenide TaSe2-xTex.CHINESE PHYSICS LETTERS,34(8),1-6.
MLA Wei, Lin-Lin,et al."Charge Density Wave States and Structural Transition in Layered Chalcogenide TaSe2-xTex".CHINESE PHYSICS LETTERS 34.8(2017):1-6.

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来源：合肥物质科学研究院

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