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Condensed Matter > Superconductivity
Title: Magnonic Superconductivity
(Submitted on 21 Mar 2024)
Abstract: We uncover a new superconducting state with partial spin polarization induced by a magnetic field. This state, which we call "magnonic superconductor", lacks a conventional pairing order parameter, but is characterized instead by a composite order parameter that represents the binding of electron pairs and magnons. We rigorously demonstrate the existence of magnonic superconductivity with high transition temperature in a triangular lattice Hubbard model with repulsive interaction. We further show that magnonic Cooper pairs can attract to form higher-charge bound states, which can give rise to charge-$6e$ superconductivity.
Submission history
From: Khachatur Nazaryan [view email][v1] Thu, 21 Mar 2024 18:00:16 GMT (1458kb,D)
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