Stabilizing even-parity chiral superconductivity in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>RuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
Han Gyeol Suh, Henri Menke, P. M. R. Brydon, Carsten Timm, Aline Ramires, Daniel F. Agterberg
Abstract
This paper proposes an even-parity chiral superconducting order parameter for strontium ruthenate. Using a three-dimensional three-band model for the band structure, the authors show that local interactions can stabilize such an even-parity pairing state at weak coupling but only once small symmetry-allowed inter-layer spin-orbit coupling terms are taken into account.
Topics & Concepts
PairingPhysicsCoupling (piping)SuperconductivityCondensed matter physicsStrontiumState (computer science)Order (exchange)Stability (learning theory)Work (physics)Quantum mechanicsTheoretical physicsMaterials scienceHigh-temperature superconductivityTopology (electrical circuits)Field (mathematics)Advanced Condensed Matter PhysicsRare-earth and actinide compoundsPhysics of Superconductivity and Magnetism