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Resonant Scattering in Proximity-Coupled Graphene/Superconducting Mo2C Heterostructures

文献类型：期刊论文

作者Hao, Meng2,3; Xu, Chuan1; Wang, Cheng2,3; Liu, Zhen2,3; Sun, Su1; Liu, Zhibo1; Cheng, Hui-Ming1; Ren, Wencai1; Kang, Ning2,3
刊名ADVANCED SCIENCE
出版日期2022-05-23
页码8
关键词2D materials graphene heterostructure proximity effect resonant scattering
DOI10.1002/advs.202201343
通讯作者Ren, Wencai(wcren@imr.ac.cn) ; Kang, Ning(nkang@pku.edu.cn)
英文摘要The realization of high-quality heterostructures or hybrids of graphene and superconductor is crucial for exploring various novel quantum phenomena and devices engineering. Here, the electronic transport on directly grown high-quality graphene/Mo2C vertical heterostructures with clean and sharp interface is comprehensively investigated. Owing to the strong interface coupling, the graphene layer feels an effective confinement potential well imposed by two-dimensional (2D) Mo2C crystal. Employing cross junction device geometry, a series of resonance-like magnetoresistance peaks are observed at low temperatures. The temperature and gate voltage dependences of the observed resonance peaks give evidence for geometric resonance of electron cyclotron orbits with the formed potential well. Moreover, it is found that both the amplitude of resonance peaks and conductance fluctuation exhibit different temperature-dependent behaviors below the superconducting transition temperature of 2D Mo2C, indicating the correlation of quantum fluctuations and superconductivity. This study offers a promising route toward integrating graphene with 2D superconducting materials, and establishes a new way to investigate the interplay of massless Dirac fermion and superconductivity based on graphene/2D superconductor vertical heterostructures.
资助项目National Natural Science Foundation of China[11974026] ; National Natural Science Foundation of China[11774005] ; National Natural Science Foundation of China[52188101] ; National Natural Science Foundation of China[51802314] ; National Natural Science Foundation of China[52122202] ; National Natural Science Foundation of China[51521091] ; National Natural Science Foundation of China[51802315] ; National Key Research and Development Program of China[2017YFA0303304] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30000000] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2018223] ; Institute of Metal Research, Chinese Academy of Sciences[2019000178]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者WILEY
WOS记录号WOS:000798761500001
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Institute of Metal Research, Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/173998]  
专题金属研究所_中国科学院金属研究所
通讯作者Ren, Wencai; Kang, Ning
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Peking Univ, Ctr Carbon Based Elect, Sch Elect, Beijing 100871, Peoples R China
3.Peking Univ, Key Lab Phys & Chem Nanodevices, Sch Elect, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Hao, Meng,Xu, Chuan,Wang, Cheng,et al. Resonant Scattering in Proximity-Coupled Graphene/Superconducting Mo2C Heterostructures[J]. ADVANCED SCIENCE,2022:8.
APA Hao, Meng.,Xu, Chuan.,Wang, Cheng.,Liu, Zhen.,Sun, Su.,...&Kang, Ning.(2022).Resonant Scattering in Proximity-Coupled Graphene/Superconducting Mo2C Heterostructures.ADVANCED SCIENCE,8.
MLA Hao, Meng,et al."Resonant Scattering in Proximity-Coupled Graphene/Superconducting Mo2C Heterostructures".ADVANCED SCIENCE (2022):8.

入库方式： OAI收割

来源：金属研究所

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