Theory of Spin-Excitation Anisotropy in the Nematic Phase of FeSe Obtained From RIXS Measurements
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Theory of Spin-Excitation Anisotropy in the Nematic Phase of FeSe Obtained From RIXS Measurements. / Kreisel, Andreas; Hirschfeld, P. J.; Andersen, Brian M.
In: Frontiers in Physics, Vol. 10, 859424, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Theory of Spin-Excitation Anisotropy in the Nematic Phase of FeSe Obtained From RIXS Measurements
AU - Kreisel, Andreas
AU - Hirschfeld, P. J.
AU - Andersen, Brian M.
N1 - Funding Information: BA acknowledges support from the Independent Research Fund Denmark grant number 8021-00047B. PH was supported by the U.S. Department of Energy under Grant No. DE-FG02-05ER4623. Publisher Copyright: Copyright © 2022 Kreisel, Hirschfeld and Andersen.
PY - 2022
Y1 - 2022
N2 - Recent resonant inelastic x-ray scattering (RIXS) experiments have detected a significant high-energy spin-excitation anisotropy in the nematic phase of the enigmatic iron-based superconductor FeSe, whose origin remains controversial. We apply an itinerant model previously used to describe the spin-excitation anisotropy as measured by neutron scattering measurements, with magnetic fluctuations included within the RPA approximation. The calculated RIXS cross section exhibits overall agreement with the RIXS data, including the high energy spin-excitation anisotropy.
AB - Recent resonant inelastic x-ray scattering (RIXS) experiments have detected a significant high-energy spin-excitation anisotropy in the nematic phase of the enigmatic iron-based superconductor FeSe, whose origin remains controversial. We apply an itinerant model previously used to describe the spin-excitation anisotropy as measured by neutron scattering measurements, with magnetic fluctuations included within the RPA approximation. The calculated RIXS cross section exhibits overall agreement with the RIXS data, including the high energy spin-excitation anisotropy.
KW - condensed matter theory
KW - FeSe
KW - magnetic excitation
KW - nematicity
KW - RIXS (resonant inelastic X-ray scattering)
U2 - 10.3389/fphy.2022.859424
DO - 10.3389/fphy.2022.859424
M3 - Journal article
AN - SCOPUS:85129468117
VL - 10
JO - Frontiers in Physics
JF - Frontiers in Physics
SN - 2296-424X
M1 - 859424
ER -
ID: 343215395