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Magnetotransport in Ultrathin 2-D Superconducting Mo2C Crystals
Song, Shuang; Wang, Libin; Xu, Chuan; Cheng, Hui-Ming; Ren, Wencai; Kang, Ning; Kang, N (reprint author), Peking Univ, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China.; Kang, N (reprint author), Peking Univ, Dept Elect, Beijing 100871, Peoples R China.
2017-11-01
Source PublicationIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
ISSN0018-9464
Volume53Issue:11Pages:-
AbstractUltrathin transition metal carbides are a class of emerging 2-D materials with many intriguing properties and applications. Here, we report the transport measurements on high-quality ultrathin Mo2C crystals, which are synthesized by a chemical vapor deposition method. We demonstrate 2-D nature of the observed superconductivity in ultrathin Mo2C crystals, being consistent with a Berezinskii Kosterlitz Thouless transition. As the sample thickness decreases, the Mo2C crystals exhibit negative magnetoresistance behavior at low magnetic fields deep in the superconducting state. We attribute these results to strong phase fluctuations of the superconducting order parameters near the superconductor insulator transition. Our results demonstrate that these high-quality ultrathin Mo2C crystals provide an appealing platform to gain insights into 2-D superconductivity in a clean system.; Ultrathin transition metal carbides are a class of emerging 2-D materials with many intriguing properties and applications. Here, we report the transport measurements on high-quality ultrathin Mo2C crystals, which are synthesized by a chemical vapor deposition method. We demonstrate 2-D nature of the observed superconductivity in ultrathin Mo2C crystals, being consistent with a Berezinskii Kosterlitz Thouless transition. As the sample thickness decreases, the Mo2C crystals exhibit negative magnetoresistance behavior at low magnetic fields deep in the superconducting state. We attribute these results to strong phase fluctuations of the superconducting order parameters near the superconductor insulator transition. Our results demonstrate that these high-quality ultrathin Mo2C crystals provide an appealing platform to gain insights into 2-D superconductivity in a clean system.
description.department[song, shuang ; wang, libin ; kang, ning] peking univ, key lab phys & chem nanodevices, beijing 100871, peoples r china ; [song, shuang ; wang, libin ; kang, ning] peking univ, dept elect, beijing 100871, peoples r china ; [xu, chuan ; cheng, hui-ming ; ren, wencai] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china
Keyword2-d Superconductivity Chemical Vapor Deposition (Cvd) Transition Metal Carbides (Tmcs) Magnetotransport
Subject AreaEngineering, Electrical & Electronic ; Physics, Applied
Funding OrganizationNational Natural Science Foundation of China [11374019, 51325205, 51290273, 51221264, 51172240]; Ministry of Science and Technology of China [2012AA030303]; Chinese Academy of Sciences [KGZD-EW-303-1]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79004
Collection中国科学院金属研究所
Corresponding AuthorKang, N (reprint author), Peking Univ, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China.; Kang, N (reprint author), Peking Univ, Dept Elect, Beijing 100871, Peoples R China.
Recommended Citation
GB/T 7714
Song, Shuang,Wang, Libin,Xu, Chuan,et al. Magnetotransport in Ultrathin 2-D Superconducting Mo2C Crystals[J]. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC,2017,53(11):-.
APA Song, Shuang.,Wang, Libin.,Xu, Chuan.,Cheng, Hui-Ming.,Ren, Wencai.,...&Kang, N .(2017).Magnetotransport in Ultrathin 2-D Superconducting Mo2C Crystals.IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC,53(11),-.
MLA Song, Shuang,et al."Magnetotransport in Ultrathin 2-D Superconducting Mo2C Crystals".IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 53.11(2017):-.
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