Superconducting gap symmetry in Sr<sub>2</sub>RuO<sub>4</sub> from linearized Eliashberg equation and Two-Particle Self-Consistent approach.
ORAL
Abstract
In view of the ongoing discussion regarding the superconducting gap symmetry in Sr2RuO4 we present results for different low-energy Hubbard models.
The single-particle propagator and the pairing interaction that enter the linearized Eliashberg equation are determined within the Two-Particle Self-Consistent approach [1]. Our calculations suggest nearly degenerate superconducting gap symmetries in this system.
We discuss the consequences in the context of recent experimental observations.
[1] K. Zantout, M. Altmeyer, S. Backes, R. Valenti, Phys. Rev. B 97, 014530 (2018)
The single-particle propagator and the pairing interaction that enter the linearized Eliashberg equation are determined within the Two-Particle Self-Consistent approach [1]. Our calculations suggest nearly degenerate superconducting gap symmetries in this system.
We discuss the consequences in the context of recent experimental observations.
[1] K. Zantout, M. Altmeyer, S. Backes, R. Valenti, Phys. Rev. B 97, 014530 (2018)
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Presenters
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Karim Zantout
Goethe University Frankfurt, Goethe University Frankfurt am Main
Authors
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Karim Zantout
Goethe University Frankfurt, Goethe University Frankfurt am Main
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Roser Valenti
Goethe University Frankfurt, Goethe-Universität Frankfurt, Goethe University Frankfurt am Main, ITP, Goethe University Frankfurt, Institute for Theoretical Physics, Goethe-Universitat Frankfurt, Goethe-University Frankfurt, Institut für Theoretische Physik, Goethe University Frankfurt