Magnetotransport in Ultrathin 2-D Superconducting Mo2C Crystals

IMR OpenIR

	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
发表期刊	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
ISSN	0018-9464
卷号	53 期号:11 页码:-
摘要	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.; 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.
部门归属	[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
关键词	2-d Superconductivity Chemical Vapor Deposition (Cvd) Transition Metal Carbides (Tmcs) Magnetotransport
学科领域	Engineering, Electrical & Electronic ; Physics, Applied
资助者	National 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]
收录类别	SCI
语种	英语
WOS记录号	WOS:000413981300262
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79004
专题	中国科学院金属研究所
通讯作者	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.
推荐引用方式 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):-.