Anomalous temperature evolution of the electronic structure of FeSe. / Kushnirenko, Y. S.; Kordyuk, A. A.; Fedorov, A. V.; Haubold, E.; Wolf, T.; Büchner, B.; Borisenko, S. V.
In: Physical Review B, Vol. 96, No. 10, 100504, 15.09.2017.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Anomalous temperature evolution of the electronic structure of FeSe
AU - Kushnirenko, Y. S.
AU - Kordyuk, A. A.
AU - Fedorov, A. V.
AU - Haubold, E.
AU - Wolf, T.
AU - Büchner, B.
AU - Borisenko, S. V.
N1 - Funding Information: We are grateful to R. Fernandes, A. Chubukov, D.-H. Lee, L. Benfatto, L. Fanfarillo, and A. Yaresko for fruitful discussions. We thank Diamond Light Source for access to beamline I05 (Proposal No. si11543-1), and T. Kim and M. Hoesch for the help at the beamline. The work is supported by Deutsche Forschungsgemeinschaft Grants No. BO1912/6-1 and No. BO1912/7-1. Publisher Copyright: © 2017 American Physical Society. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2017/9/15
Y1 - 2017/9/15
N2 - We present angle-resolved photoemission spectroscopy data taken from the structurally simplest representative of iron-based superconductors, FeSe, in a wide temperature range. Apart from the variations related to the nematic transition, we detect very pronounced shifts of the dispersions on the scale of hundreds of degrees Kelvin. Remarkably, upon warming up the sample, the band structure has a tendency to relax to the one predicted by conventional band structure calculations, directly opposite to what is intuitively expected. Our findings shed light on the origin of the dominant interaction shaping the electronic states responsible for high-temperature superconductivity in iron-based materials.
AB - We present angle-resolved photoemission spectroscopy data taken from the structurally simplest representative of iron-based superconductors, FeSe, in a wide temperature range. Apart from the variations related to the nematic transition, we detect very pronounced shifts of the dispersions on the scale of hundreds of degrees Kelvin. Remarkably, upon warming up the sample, the band structure has a tendency to relax to the one predicted by conventional band structure calculations, directly opposite to what is intuitively expected. Our findings shed light on the origin of the dominant interaction shaping the electronic states responsible for high-temperature superconductivity in iron-based materials.
UR - http://www.scopus.com/inward/record.url?scp=85029956248&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.96.100504
DO - 10.1103/PhysRevB.96.100504
M3 - Article
AN - SCOPUS:85029956248
VL - 96
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 10
M1 - 100504
ER -
ID: 9225682