Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer

X. Shi; Z-Q Han; X-L Peng; P. Richard; T. Qian; X-X Wu; M-W Qiu; S. C. Wang; J. P. Hu; Y-J Sun; H. Ding

doi:10.1038/ncomms14988

Nature Communications (Apr 2017)

Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer

X. Shi,
Z-Q Han,
X-L Peng,
P. Richard,
T. Qian,
X-X Wu,
M-W Qiu,
S. C. Wang,
J. P. Hu,
Y-J Sun,
H. Ding

Affiliations

X. Shi: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
Z-Q Han: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
X-L Peng: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
P. Richard: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
T. Qian: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
X-X Wu: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
M-W Qiu: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
S. C. Wang: Department of Physics, Beijing Key Laboratory of Opto-Electronic Functional Materials and Micro-nano Devices, Renmin University of China
J. P. Hu: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
Y-J Sun: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
H. Ding: Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences

DOI: https://doi.org/10.1038/ncomms14988
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 6

Abstract

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The origin of superconductivity enhancement in FeSe monolayer grown on SrTiO3 compared to bulk FeSe is still a debated issue. Here, Shi et al. report a further 15 K jump of Tc accompanying a second Lifshitz transition triggered by electron doping in FeSe/SrTiO3monolayer films.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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