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题名

Tuning the electronic states and superconductivity in alkali fulleride films

作者
发表日期
2022-12-01
DOI
发表期刊
ISSN
0218-2203
EISSN
2309-4710
卷号32期号:1
摘要
The successful preparation of superconducting alkali fulleride (AC, A = K, Rb, Cs) films using state-of-the-art molecular beam epitaxy overcomes the disadvantages of the air-sensitivity and phase separation in bulk AC, enabling for the first time a direct investigation of the superconductivity in alkali fullerides on the molecular scale. In this paper, we briefly review recent cryogenic scanning tunneling microscopy results of the structural, electronic, and superconducting properties of the fcc AC films grown on graphitized SiC substrates. Robust s-wave superconductivity is revealed against the pseudogap, electronic correlation, non-magnetic impurities, and merohedral disorder. By controlling the alkali-metal species, film thickness, and electron doping, we systematically tune the C orientational orderings and superconductivity in AC films and then complete a unified phase diagram of superconducting gap size vs electronic correlation and doping. These investigations are conclusive and elucidated that the s-wave superconductivity retains in alkali fullerides despite of the electronic correlation and presence of pseudogap.
相关链接[Scopus记录]
语种
英语
学校署名
其他
资助项目
Postdoctoral Research Foundation of China[2021T140388];
Scopus记录号
2-s2.0-85144642105
来源库
Scopus
引用统计
被引频次[WOS]:0
成果类型期刊论文
条目标识符http://kc.sustech.edu.cn/handle/2SGJ60CL/560327
专题南方科技大学
作者单位
1.State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing,100084,China
2.Frontier Science Center for Quantum Information,Beijing,100084,China
3.Beijing Academy of Quantum Information Sciences,Beijing,100193,China
4.Southern University of Science and Technology,Shenzhen,518055,China
推荐引用方式
GB/T 7714
Ren,Ming Qiang,Wang,Shu Ze,Han,Sha,et al. Tuning the electronic states and superconductivity in alkali fulleride films[J]. AAPPS Bulletin,2022,32(1).
APA
Ren,Ming Qiang,Wang,Shu Ze,Han,Sha,Song,Can Li,Ma,Xu Cun,&Xue,Qi Kun.(2022).Tuning the electronic states and superconductivity in alkali fulleride films.AAPPS Bulletin,32(1).
MLA
Ren,Ming Qiang,et al."Tuning the electronic states and superconductivity in alkali fulleride films".AAPPS Bulletin 32.1(2022).
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