Evidence for strong electronic correlations in the spectra of ${\mathrm{Sr}}_{2}\mathrm{Ru}{\mathrm{O}}_{4}$

Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$

Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke, A. Sekiyama, S. Suga, V. I. Anisimov, and D. Vollhardt

Phys. Rev. B 75, 035122 – Published 18 January 2007

Abstract

We identify a satellite structure at $- 3 eV$ in the photoemission spectra of layered perovskite ${Sr}_{2} Ru O_{4}$ as a lower Hubbard band. To this end we use state-of-the-art local-density approximation plus dynamical mean-field theory (LDA+DMFT) in the basis of Wannier functions to compute spectral functions and the quasiparticle dispersion of ${Sr}_{2} Ru O_{4}$ , and then compare the results with newly measured angle-integrated and angle-resolved spectra with $700 − eV$ photon energy. Our theoretical spectra are in overall qualitative agreement with various spectroscopic experiments. We also calculate the $k$ dependence of the quasiparticle bands and compare the results with high-energy bulk sensitive angle-resolved photoemission data.

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Received 24 January 2006

DOI:https://doi.org/10.1103/PhysRevB.75.035122

Authors & Affiliations

Z. V. Pchelkina^1,*, I. A. Nekrasov², Th. Pruschke³, A. Sekiyama⁴, S. Suga⁴, V. I. Anisimov¹, and D. Vollhardt⁵

¹Institute of Metal Physics, Russian Academy of Sciences-Ural Division, 620041 Yekaterinburg GSP-170, Russia
²Institute of Electrophysics, Russian Academy of Sciences-Ural Division, 620016 Yekaterinburg, Russia
³Institute for Theoretical Physics, University of Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany
⁴Graduate School of Engineering Science, Osaka University Toyonaka, Osaka 560-8531, Japan
⁵Theoretical Physics III, Center for Electronic Correlations and Magnetism, University of Augsburg, D-86135 Augsburg, Germany

^*Electronic address: pzv@ifmlrs.uran.ru

Comments & Replies

Comment on “Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$ ”

D. J. Singh

Phys. Rev. B 77, 046101 (2008)

Reply to “Comment on ‘Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$ ’ ”

Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke, S. Suga, V. I. Anisimov, and D. Vollhardt

Phys. Rev. B 77, 046102 (2008)

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Vol. 75, Iss. 3 — 15 January 2007

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Physical Review B

covering condensed matter and materials physics

Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$

Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke, A. Sekiyama, S. Suga, V. I. Anisimov, and D. Vollhardt

Phys. Rev. B 75, 035122 – Published 18 January 2007

Abstract

Authors & Affiliations

Comments & Replies

Comment on “Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$ ”

D. J. Singh

Phys. Rev. B 77, 046101 (2008)

Reply to “Comment on ‘Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$ ’ ”

Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke, S. Suga, V. I. Anisimov, and D. Vollhardt

Phys. Rev. B 77, 046102 (2008)

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Physical Review B

covering condensed matter and materials physics

Evidence for strong electronic correlations in the spectra of Sr2RuO4

Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke, A. Sekiyama, S. Suga, V. I. Anisimov, and D. Vollhardt

Phys. Rev. B 75, 035122 – Published 18 January 2007

Abstract

Authors & Affiliations

Comments & Replies

Comment on “Evidence for strong electronic correlations in the spectra of Sr2RuO4”

D. J. Singh

Phys. Rev. B 77, 046101 (2008)

Reply to “Comment on ‘Evidence for strong electronic correlations in the spectra of Sr2RuO4’ ”

Z. V. Pchelkina, I. A. Nekrasov, Th. Pruschke, S. Suga, V. I. Anisimov, and D. Vollhardt

Phys. Rev. B 77, 046102 (2008)

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Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$

Comment on “Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$ ”

Reply to “Comment on ‘Evidence for strong electronic correlations in the spectra of ${Sr}_{2} Ru O_{4}$ ’ ”