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Charge Density Wave States and Structural Transition in Layered Chalcogenide TaSe2-xTex
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
2017-07-01
Source PublicationCHINESE PHYSICS LETTERS
Volume34Issue:8Pages:1-6
AbstractThe 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Basic Research Program of China(2015CB921300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Natural Science Foundation of China(11474323 ; Chinese Academy of Sciences(XDB07020000) ; 2012CB821404) ; 2016YFA0300404) ; 11604372 ; 11274368 ; 91221102 ; 11190022 ; 11674326 ; 91422303) ; National Basic Research Program of China(2015CB921300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Natural Science Foundation of China(11474323 ; Chinese Academy of Sciences(XDB07020000) ; 2012CB821404) ; 2016YFA0300404) ; 11604372 ; 11274368 ; 91221102 ; 11190022 ; 11674326 ; 91422303)
DOI10.1088/0256-307X/34/8/086101
WOS KeywordMETAL DICHALCOGENIDES ; SUPERCONDUCTIVITY
Indexed BySCI
Language英语
Funding OrganizationNational Basic Research Program of China(2015CB921300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Natural Science Foundation of China(11474323 ; Chinese Academy of Sciences(XDB07020000) ; 2012CB821404) ; 2016YFA0300404) ; 11604372 ; 11274368 ; 91221102 ; 11190022 ; 11674326 ; 91422303) ; National Basic Research Program of China(2015CB921300 ; National Key Research and Development Program of China(2016YFA0300300 ; National Natural Science Foundation of China(11474323 ; Chinese Academy of Sciences(XDB07020000) ; 2012CB821404) ; 2016YFA0300404) ; 11604372 ; 11274368 ; 91221102 ; 11190022 ; 11674326 ; 91422303)
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000412909200026
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33790
Collection中科院固体物理研究所
Affiliation1.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
Recommended Citation
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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