| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Proximity-Induced Superconductivity in New Superstructures on 2H-NbSe$_2$ Surface |
| Xing-Yuan Hou1,2, Ya-Dong Gu1,2, Zong Wang1,2, Hai Zi2, Xiang-De Zhu3**, Meng-Di Zhang 1, Chun-Hong Li1, Cong Ren1, Lei Shan1,2,4** |
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049
3Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Science, Hefei 230031
4Collaborative Innovation Center of Quantum Matter, Beijing 100190
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| Cite this article: |
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Xing-Yuan Hou, Ya-Dong Gu, Zong Wang et al 2017 Chin. Phys. Lett. 34 077403 |
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Abstract Using scanning tunneling microscopy we observe a stripe phase smoothly interfacing with a triangular $2\times2$ superstructure on the surface of 2H-NbSe$_2$ single crystal. Proximity-induced superconductivity is demonstrated in these new ordered structures by measurements of low-temperature tunneling spectra. The modulation of superconductivity by the reconstruction provides an opportunity to understand the interplay between superconductivity and charge orders.
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Received: 25 April 2017
Published: 23 June 2017
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| PACS: |
74.45.+c
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(Proximity effects; Andreev reflection; SN and SNS junctions)
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71.45.Lr
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(Charge-density-wave systems)
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74.50.+r
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(Tunneling phenomena; Josephson effects)
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74.78.Fk
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(Multilayers, superlattices, heterostructures)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11574372 and 11322432, and the 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences under Grant No XDB07020300. |
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