Strongly enhanced temperature dependence of the chemical potential in FeSe

L. C. Rhodes; M. D. Watson; A. A. Haghighirad; M. Eschrig; T. K. Kim

doi:10.1103/PhysRevB.95.195111

Strongly enhanced temperature dependence of the chemical potential in FeSe

L. C. Rhodes, M. D. Watson, A. A. Haghighirad, M. Eschrig, T. K. Kim

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Employing a 10-orbital tight-binding model, we present a set of hopping parameters fitted directly to our latest high-resolution angle-resolved photoemission spectroscopy (ARPES) data for the high-temperature tetragonal phase of FeSe. Using these parameters, we predict a large 10 meV shift of the chemical potential as a function of temperature. To confirm this large temperature dependence, we performed ARPES experiments on FeSe and observed a ∼25 meV rigid shift to the chemical potential between 100 and 300 K. This strong shift has important implications for theoretical models of superconductivity and of nematic order in FeSe materials.

Original language	English
Article number	195111
Number of pages	7
Journal	Physical Review B
Volume	95
Issue number	19
Early online date	8 May 2017
DOIs	https://doi.org/10.1103/PhysRevB.95.195111
Publication status	Published - 15 May 2017

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PhysRevB.95.195111
Copyright © 2017 the Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
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title = "Strongly enhanced temperature dependence of the chemical potential in FeSe",

abstract = "Employing a 10-orbital tight-binding model, we present a set of hopping parameters fitted directly to our latest high-resolution angle-resolved photoemission spectroscopy (ARPES) data for the high-temperature tetragonal phase of FeSe. Using these parameters, we predict a large 10 meV shift of the chemical potential as a function of temperature. To confirm this large temperature dependence, we performed ARPES experiments on FeSe and observed a ∼25 meV rigid shift to the chemical potential between 100 and 300 K. This strong shift has important implications for theoretical models of superconductivity and of nematic order in FeSe materials.",

author = "Rhodes, \{L. C.\} and Watson, \{M. D.\} and Haghighirad, \{A. A.\} and M. Eschrig and Kim, \{T. K.\}",

year = "2017",

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doi = "10.1103/PhysRevB.95.195111",

language = "English",

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T1 - Strongly enhanced temperature dependence of the chemical potential in FeSe

AU - Rhodes, L. C.

AU - Watson, M. D.

AU - Haghighirad, A. A.

AU - Eschrig, M.

AU - Kim, T. K.

PY - 2017/5/15

Y1 - 2017/5/15

N2 - Employing a 10-orbital tight-binding model, we present a set of hopping parameters fitted directly to our latest high-resolution angle-resolved photoemission spectroscopy (ARPES) data for the high-temperature tetragonal phase of FeSe. Using these parameters, we predict a large 10 meV shift of the chemical potential as a function of temperature. To confirm this large temperature dependence, we performed ARPES experiments on FeSe and observed a ∼25 meV rigid shift to the chemical potential between 100 and 300 K. This strong shift has important implications for theoretical models of superconductivity and of nematic order in FeSe materials.

AB - Employing a 10-orbital tight-binding model, we present a set of hopping parameters fitted directly to our latest high-resolution angle-resolved photoemission spectroscopy (ARPES) data for the high-temperature tetragonal phase of FeSe. Using these parameters, we predict a large 10 meV shift of the chemical potential as a function of temperature. To confirm this large temperature dependence, we performed ARPES experiments on FeSe and observed a ∼25 meV rigid shift to the chemical potential between 100 and 300 K. This strong shift has important implications for theoretical models of superconductivity and of nematic order in FeSe materials.

UR - https://www.scopus.com/pages/publications/85023623851

U2 - 10.1103/PhysRevB.95.195111

DO - 10.1103/PhysRevB.95.195111

M3 - Article

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SN - 2469-9950

VL - 95

JO - Physical Review B

JF - Physical Review B

IS - 19

M1 - 195111

ER -

Strongly enhanced temperature dependence of the chemical potential in FeSe

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Strongly enhanced temperature dependence of the chemical potential in FeSe

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