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Enhanced Superconductivity in Restacked TaS2Nanosheets
Pan, Jie1,2,3; Guo, Chenguang1,2,3; Song, Changsheng1; Lai, Xiaofang3; Li, Hui4; Zhao, Wei1; Zhang, Hui6; Mu, Gang6; Bu, Kejun1,2,3; Lin, Tianquan1; Xie, Xiaoming6; Chen, Mingwei4,5; Huang, Fuqiang1,3
2017
Source PublicationJournal of the American Chemical Society
ISSN00027863
Volume139Issue:13Pages:4623-4626
AbstractSince interface superconductivity was discovered at the interface between two insulating layers LaAlO3and SrTiO3, such interface-induced superconducting systems have been a research hotspot in superconductivity. Here, we report homogeneous interfaces formed by stacking chemically exfoliated monolayer TaS2nanosheets randomly. Enhanced superconductivity of Tc= 3 K is observed, compared with 0.8 K of parent 2H-TaS2. The measurement of heat capacity shows the increase of electronic specific-heat coefficient γ of restacked TaS2nanosheets compared to parent 2H-TaS2crystals. Density functional theory calculations indicate that increase and delocalization of electron states near the Fermi surface due to the homogeneous interfaces effects could account for the enhanced superconductivity. © 2017 American Chemical Society.
DOI10.1021/jacs.7b00216
EI Accession Number20171503553109
EI KeywordsSulfur compounds
EI Classification Number641.1 Thermodynamics - 761 Nanotechnology - 804 Chemical Products Generally - 931 Classical Physics ; Quantum Theory ; Relativity - 932 High Energy Physics ; Nuclear Physics ; Plasma Physics - 933 Solid State Physics
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25398
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing; 100871, China;
4.State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai; 200030, China;
5.WPI Advanced Institute for Materials Research, Tohoku University, Sendai; 980-8577, Japan;
6.State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai; 200050, China
Recommended Citation
GB/T 7714
Pan, Jie,Guo, Chenguang,Song, Changsheng,et al. Enhanced Superconductivity in Restacked TaS2Nanosheets[J]. Journal of the American Chemical Society,2017,139(13):4623-4626.
APA Pan, Jie.,Guo, Chenguang.,Song, Changsheng.,Lai, Xiaofang.,Li, Hui.,...&Huang, Fuqiang.(2017).Enhanced Superconductivity in Restacked TaS2Nanosheets.Journal of the American Chemical Society,139(13),4623-4626.
MLA Pan, Jie,et al."Enhanced Superconductivity in Restacked TaS2Nanosheets".Journal of the American Chemical Society 139.13(2017):4623-4626.
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