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High-Resolution Pho...
High-Resolution Photoemission on Sr2RuO4 Reveals Correlation-Enhanced Effective Spin-Orbit Coupling and Dominantly Local Self-Energies
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- Tamai, Anna (author)
- Department of Quantum Matter Physics, University of Geneva, Genève, Switzerland
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- Zingl, Manuel (author)
- Center for Computational Quantum Physics, Flatiron Institute, New York, USA
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- Rozbicki, E. (author)
- SUPA, School of Physics and Astronomy, University of St. Andrews, Fife, England
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- Cappelli, E. (author)
- Department of Quantum Matter Physics, University of Geneva, Genève, Switzerland
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- Riccò, Sara (author)
- Department of Quantum Matter Physics, University of Geneva, Genève, Switzerland
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- de la Torre, A. (author)
- Department of Quantum Matter Physics, University of Geneva, Genève, Switzerland
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- McKeown Walker, Siobhan (author)
- Department of Quantum Matter Physics, University of Geneva, Genève, Switzerland
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- Bruno, Flavio Y. (author)
- Department of Quantum Matter Physics, University of Geneva, Genève, Switzerland
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- King, Phil D. C. (author)
- SUPA, School of Physics and Astronomy, University of St. Andrews, Fife, England
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- Meevasana, Worawat (author)
- School of Physics, Suranaree University of Technology and Synchrotron Light Research Institute,Nakhon Ratchasima, Thailand; Thailand Center of Excellence in Physics, CHE, Bangkok, Thailand
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- Shi, Ming (author)
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
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- Radović, Milan (author)
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
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- Plumb, Nicholas C. (author)
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
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- Gibbs, A. S. (author)
- SUPA, School of Physics and Astronomy, University of St. Andrews, Fife, England
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- Mackenzie, A. P. (author)
- Max Planck Institute for Chemical Physics of Solids, Dresden, Germany; SUPA, School of Physics and Astronomy, University of St. Andrews, Fife, England
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- Berthod, Christophe (author)
- Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Strand, Hugo, 1983- (author)
- Center for Computational Quantum Physics, Flatiron Institute, New York, USA
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- Kim, M. (author)
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey, New Jersey, USA; Centre de Physique Th ́eorique, CNRS, Ecole Polytechniqu Paris, France
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- Georges, A. (author)
- Coll`ege de France, Paris, France; Center for Computational Quantum Physics, Flatiron Institute, New York, USA; Centre de Physique Th ́eorique, CNRS, Ecole Polytechnique, Paris, France; Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Baumberger, Felix (author)
- Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland; Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
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(creator_code:org_t)
- New York : American Physical Society, 2019
- 2019
- English.
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In: Physical Review X. - New York : American Physical Society. - 2160-3308. ; 9:2
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We explore the interplay of electron-electron correlations and spin-orbit coupling in the model Fermi liquid Sr2RuO4 using laser-based angle-resolved photoemission spectroscopy. Our precise measurement of the Fermi surface confirms the importance of spin-orbit coupling in this material and reveals that its effective value is enhanced by a factor of about 2, due to electronic correlations. The self-energies for the β and γ sheets are found to display significant angular dependence. By taking into account the multi-orbital composition of quasiparticle states, we determine self-energies associated with each orbital component directly from the experimental data. This analysis demonstrates that the perceived angular dependence does not imply momentum-dependent many-body effects but arises from a substantial orbital mixing induced by spin-orbit coupling. A comparison to single-site dynamical mean-field theory further supports the notion of dominantly local orbital self-energies and provides strong evidence for an electronic origin of the observed nonlinear frequency dependence of the self-energies, leading to “kinks” in the quasiparticle dispersion of Sr2RuO4.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- By the author/editor
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Tamai, Anna
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Zingl, Manuel
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Rozbicki, E.
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Cappelli, E.
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Riccò, Sara
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de la Torre, A.
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show more...
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McKeown Walker, ...
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Bruno, Flavio Y.
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King, Phil D. C.
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Meevasana, Woraw ...
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Shi, Ming
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Radović, Milan
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Plumb, Nicholas ...
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Gibbs, A. S.
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Mackenzie, A. P.
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Berthod, Christo ...
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Strand, Hugo, 19 ...
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Kim, M.
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Georges, A.
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Baumberger, Feli ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Physical Review ...
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Örebro University