Large-area high-quality 2D ultrathin Mo2C superconducting crystals

IMR OpenIR

	Large-area high-quality 2D ultrathin Mo2C superconducting crystals
	Xu, Chuan; Wang, Libin; Liu, Zhibo; Chen, Long; Guo, Jingkun; Kang, Ning; Ma, Xiu-Liang; Cheng, Hui-Ming; Ren, Wencai; nkang@pku.edu.cn; wcren@imr.ac.cn
	2015
发表期刊	NATURE MATERIALS
ISSN	1476-1122
卷号	14 期号:11 页码:1135-+
摘要	Transition metal carbides (TMCs) are a large family of materials with many intriguing properties and applications, and high-quality 2D TMCs are essential for investigating new physics and properties in the 2D limit. However, the 2D TMCs obtained so far are chemically functionalized, defective nanosheets having maximum lateral dimensions of similar to 10 mu m. Here we report the fabrication of large-area high-quality 2D ultrathin alpha-Mo2C crystals by chemical vapour deposition (CVD). The crystals are a few nanometres thick, over 100 mu m in size, and very stable under ambient conditions. They show 2D characteristics of superconducting transitions that are consistent with Berezinskii-Kosterlitz-Thouless behaviour and show strong anisotropy with magnetic field orientation; moreover, the superconductivity is also strongly dependent on the crystal thickness. Our versatile CVD process allows the fabrication of other high-quality 2D TMC crystals, such as ultrathin WC and TaC crystals, which further expand the large family of 2D materials.
部门归属	[xu, chuan ; liu, zhibo ; chen, long ; ma, xiu-liang ; cheng, hui-ming ; ren, wencai] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [wang, libin ; guo, jingkun ; kang, ning] peking univ, key lab phys & chem nanodevices, beijing 100871, peoples r china ; [wang, libin ; guo, jingkun ; kang, ning] peking univ, dept elect, beijing 100871, peoples r china
资助者	National Natural Science Foundation of China [51325205, 51290273, 51221264, 51172240, 11374019]; Ministry of Science and Technology of China [2012AA030303]; Chinese Academy of Sciences [KGZD-EW-303-1, KGZD-EW-T06]
收录类别	sci
语种	英语
WOS记录号	WOS:000363471900022
引用统计	被引频次：904[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/321006/74938
专题	中国科学院金属研究所
通讯作者	nkang@pku.edu.cn; wcren@imr.ac.cn
推荐引用方式 GB/T 7714	Xu, Chuan,Wang, Libin,Liu, Zhibo,et al. Large-area high-quality 2D ultrathin Mo2C superconducting crystals[J]. NATURE MATERIALS,2015,14(11):1135-+.
APA	Xu, Chuan.,Wang, Libin.,Liu, Zhibo.,Chen, Long.,Guo, Jingkun.,...&wcren@imr.ac.cn.(2015).Large-area high-quality 2D ultrathin Mo2C superconducting crystals.NATURE MATERIALS,14(11),1135-+.
MLA	Xu, Chuan,et al."Large-area high-quality 2D ultrathin Mo2C superconducting crystals".NATURE MATERIALS 14.11(2015):1135-+.