Quantitative analysis of Sr2RuO4 angle-resolved photoemission spectra: Many-body interactions in a model Fermi liquid

N. J.C. Ingle, K. M. Shen, F. Baumberger, W. Meevasana, D. H. Lu, Z. X. Shen, A. Damascelli, S. Nakatsuji, Zhiqiang Mao, Y. Maeno, T. Kimura, Y. Tokura

Research output: Contribution to journalArticle

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Abstract

Angle-resolved photoemission spectroscopy (ARPES) spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic line shape, deconvolved of energy and momentum resolution effects, of the correlated two-dimensional material Sr2RuO4. In correlated two-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms, it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give a complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.

Original languageEnglish (US)
Article number205114
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number20
DOIs
StatePublished - Nov 15 2005

Fingerprint

Fermi liquids
Photoemission
Photoelectron spectroscopy
quantitative analysis
photoelectric emission
Chemical analysis
spectroscopy
interactions
Electron scattering
Fermi surface
Electrons
Fermi level
Binding energy
Linewidth
Fermi surfaces
line shape
energy
Momentum
electron scattering
electrons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Ingle, N. J.C. ; Shen, K. M. ; Baumberger, F. ; Meevasana, W. ; Lu, D. H. ; Shen, Z. X. ; Damascelli, A. ; Nakatsuji, S. ; Mao, Zhiqiang ; Maeno, Y. ; Kimura, T. ; Tokura, Y. / Quantitative analysis of Sr2RuO4 angle-resolved photoemission spectra : Many-body interactions in a model Fermi liquid. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 72, No. 20.
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abstract = "Angle-resolved photoemission spectroscopy (ARPES) spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic line shape, deconvolved of energy and momentum resolution effects, of the correlated two-dimensional material Sr2RuO4. In correlated two-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms, it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give a complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.",
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Ingle, NJC, Shen, KM, Baumberger, F, Meevasana, W, Lu, DH, Shen, ZX, Damascelli, A, Nakatsuji, S, Mao, Z, Maeno, Y, Kimura, T & Tokura, Y 2005, 'Quantitative analysis of Sr2RuO4 angle-resolved photoemission spectra: Many-body interactions in a model Fermi liquid', Physical Review B - Condensed Matter and Materials Physics, vol. 72, no. 20, 205114. https://doi.org/10.1103/PhysRevB.72.205114

Quantitative analysis of Sr2RuO4 angle-resolved photoemission spectra : Many-body interactions in a model Fermi liquid. / Ingle, N. J.C.; Shen, K. M.; Baumberger, F.; Meevasana, W.; Lu, D. H.; Shen, Z. X.; Damascelli, A.; Nakatsuji, S.; Mao, Zhiqiang; Maeno, Y.; Kimura, T.; Tokura, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 20, 205114, 15.11.2005.

Research output: Contribution to journalArticle

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T1 - Quantitative analysis of Sr2RuO4 angle-resolved photoemission spectra

T2 - Many-body interactions in a model Fermi liquid

AU - Ingle, N. J.C.

AU - Shen, K. M.

AU - Baumberger, F.

AU - Meevasana, W.

AU - Lu, D. H.

AU - Shen, Z. X.

AU - Damascelli, A.

AU - Nakatsuji, S.

AU - Mao, Zhiqiang

AU - Maeno, Y.

AU - Kimura, T.

AU - Tokura, Y.

PY - 2005/11/15

Y1 - 2005/11/15

N2 - Angle-resolved photoemission spectroscopy (ARPES) spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic line shape, deconvolved of energy and momentum resolution effects, of the correlated two-dimensional material Sr2RuO4. In correlated two-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms, it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give a complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.

AB - Angle-resolved photoemission spectroscopy (ARPES) spectra hold a wealth of information about the many-body interactions in a correlated material. However, the quantitative analysis of ARPES spectra to extract the various coupling parameters in a consistent manner is extremely challenging, even for a model Fermi liquid system. We propose a fitting procedure which allows quantitative access to the intrinsic line shape, deconvolved of energy and momentum resolution effects, of the correlated two-dimensional material Sr2RuO4. In correlated two-dimensional materials, we find an ARPES linewidth that is narrower than its binding energy, a key property of quasiparticles within Fermi liquid theory. We also find that when the electron-electron scattering component is separated from the electron-phonon and impurity scattering terms, it decreases with a functional form compatible with Fermi liquid theory as the Fermi energy is approached. In combination with the previously determined Fermi surface, these results give a complete picture of a Fermi liquid system via ARPES. Furthermore, we show that the magnitude of the extracted imaginary part of the self-energy is in remarkable agreement with DC transport measurements.

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