Special Issue:
TOPICAL REVIEW — Interface-induced high temperature superconductivity
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TOPICAL REVIEW—Interface-induced high temperature superconductivity |
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In-situ spectroscopic studies and interfacial engineering on FeSe/oxide heterostructures: Insights on the interfacial superconductivity |
Peng Rui (彭瑞)a b, Xu Hai-Chao (徐海超)a b, Feng Dong-Lai (封东来)a b |
a State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, China; b Advanced Materials Laboratory, Fudan University, Shanghai 200433, China |
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Abstract The discovery of high temperature superconductivity in single-layer FeSe/SrTiO3 provides a new platform for exploring superconductivity and pursuing higher Tc (superconducting transition temperature) through fabricating artificial heterostructures. In this paper, we review the recent progress in studying and tuning the interfacial superconductivity in single-layer FeSe, through the combined in-situ spectroscopic studies and atomic-scale engineering. By fabricating artificial heterostructures, various interfacial factors were tuned, and the corresponding evolutions of electronic structure and superconducting gap behavior were investigated. These studies enrich the current understanding on the interfacial superconductivity, and provide clues for further enhancing Tc through interface engineering.
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Received: 07 May 2015
Revised: 26 June 2015
Accepted manuscript online:
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PACS:
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79.60.-i
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(Photoemission and photoelectron spectra)
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79.60.Jv
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(Interfaces; heterostructures; nanostructures)
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74.70.Xa
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(Pnictides and chalcogenides)
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81.15.Hi
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(Molecular, atomic, ion, and chemical beam epitaxy)
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Fund: Project supported by the National Natural Science Foundation of China and the National Basic Research Program of China (Grant Nos. 2012CB921402, 2011CB921802, and 2011CBA00112). |
Corresponding Authors:
Xu Hai-Chao
E-mail: xuhaichao@fudan.edu.cn
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Cite this article:
Peng Rui (彭瑞), Xu Hai-Chao (徐海超), Feng Dong-Lai (封东来) In-situ spectroscopic studies and interfacial engineering on FeSe/oxide heterostructures: Insights on the interfacial superconductivity 2015 Chin. Phys. B 24 117902
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