Ubiquitous strong electron-phonon coupling at the interface of FeSe/SrTiO3
Zhang, Chaofan1,2,3; Liu, Zhongkai4; Chen, Zhuoyu1,2,3; Xie, Yanwu1,2,3; He, Ruihua5; Tang, Shujie1,2,3; He, Junfeng1,2,3; Li, Wei1,2,3; Jia, Tao1,2,3; Rebec, Slavko N.1,2,3
2017-02-10
发表期刊NATURE COMMUNICATIONS
ISSN2041-1723
卷号8
发表状态已发表
DOI10.1038/ncomms14468
摘要The observation of replica bands in single-unit-cell FeSe on SrTiO3 (STO)(001) by angle-resolved photoemission spectroscopy (ARPES) has led to the conjecture that the coupling between FeSe electrons and the STO phonons are responsible for the enhancement of T-c over other FeSe-based superconductors. However the recent observation of a similar superconducting gap in single-unit-cell FeSe/STO(110) raised the question of whether a similar mechanism applies. Here we report the ARPES study of the electronic structure of FeSe/STO(110). Similar to the results in FeSe/STO(001), clear replica bands are observed. We also present a comparative study of STO(001) and STO(110) bare surfaces, and observe similar replica bands separated by approximately the same energy, indicating this coupling is a generic feature of the STO surfaces and interfaces. Our findings suggest that the large superconducting gaps observed in FeSe films grown on different STO surface terminations are likely enhanced by a common mechanism.
收录类别SCI
语种英语
资助项目US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division[DE-AC02-05CH11231]
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000393739700001
出版者NATURE PUBLISHING GROUP
WOS关键词PHASE-DIAGRAM ; FESE ; SUPERCONDUCTIVITY ; SURFACE ; GAS ; LIQUID ; LAYER
原始文献类型Article
引用统计
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1508
专题物质科学与技术学院_PI研究组_柳仲楷组
通讯作者Shen, Zhixun
作者单位1.SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
2.Stanford Univ, Geballe Lab Adv Mat, Dept Phys, Stanford, CA 94305 USA
3.Stanford Univ, Geballe Lab Adv Mat, Dept Appl Phys, Stanford, CA 94305 USA
4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
5.Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
6.SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
7.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
8.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
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GB/T 7714
Zhang, Chaofan,Liu, Zhongkai,Chen, Zhuoyu,et al. Ubiquitous strong electron-phonon coupling at the interface of FeSe/SrTiO3[J]. NATURE COMMUNICATIONS,2017,8.
APA Zhang, Chaofan.,Liu, Zhongkai.,Chen, Zhuoyu.,Xie, Yanwu.,He, Ruihua.,...&Shen, Zhixun.(2017).Ubiquitous strong electron-phonon coupling at the interface of FeSe/SrTiO3.NATURE COMMUNICATIONS,8.
MLA Zhang, Chaofan,et al."Ubiquitous strong electron-phonon coupling at the interface of FeSe/SrTiO3".NATURE COMMUNICATIONS 8(2017).
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