IMR OpenIR
Proximity-induced surface superconductivity in Dirac semimetal Cd3As2
Huang, Ce; Zhou, Benjamin T.; Zhang, Huiqin; Yang, Bingjia; Liu, Ran; Wang, Hanwen; Wan, Yimin; Huang, Ke; Liao, Zhiming; Zhang, Enze; Liu, Shanshan; Deng, Qingsong; Chen, Yanhui; Han, Xiaodong; Zou, Jin; Lin, Xi; Han, Zheng; Wang, Yihua; Law, Kam Tuen; Xiu, Faxian
2019-05-17
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume10
AbstractCd3As2 is a three-dimensional Dirac semimetal with separated Dirac points in momentum space. In spite of extensive transport and spectroscopic studies on its exotic properties, the evidence of superconductivity in its surface states remains elusive. Here, we report the observation of proximity-induced surface superconductivity in Nb/Cd3As2 hybrid structures. Our four-terminal transport measurement identifies a pronounced proximity-induced pairing gap (gap size comparable to Nb) on the surfaces, which exhibits a flat conductance plateau in differential conductance spectra, consistent with our theoretical simulations. The surface supercurrent from Nb/Cd3As2/Nb junctions is also achieved with a Fraunhofer/SQUID-like pattern under out-of-plane/in-plane magnetic fields, respectively. The resultant mapping shows a predominant distribution on the top and bottom surfaces as the bulk carriers are depleted, which can be regarded as a higher dimensional analog of edge supercurrent in two-dimensional quantum spin Hall insulators. Our study provides the evidence of surface superconductivity in Dirac semimetals.
Indexed BySCI
Language英语
WOS IDWOS:000468174600017
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81084
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Huang, Ce,Zhou, Benjamin T.,Zhang, Huiqin,et al. Proximity-induced surface superconductivity in Dirac semimetal Cd3As2[J]. NATURE COMMUNICATIONS,2019,10.
APA Huang, Ce.,Zhou, Benjamin T..,Zhang, Huiqin.,Yang, Bingjia.,Liu, Ran.,...&Xiu, Faxian.(2019).Proximity-induced surface superconductivity in Dirac semimetal Cd3As2.NATURE COMMUNICATIONS,10.
MLA Huang, Ce,et al."Proximity-induced surface superconductivity in Dirac semimetal Cd3As2".NATURE COMMUNICATIONS 10(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang, Ce]'s Articles
[Zhou, Benjamin T.]'s Articles
[Zhang, Huiqin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Ce]'s Articles
[Zhou, Benjamin T.]'s Articles
[Zhang, Huiqin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Ce]'s Articles
[Zhou, Benjamin T.]'s Articles
[Zhang, Huiqin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.