Interface-induced d-wave pairing
C. Stephanos (1), T. Kopp (1), J. Mannhart (1, 2), P. J. Hirschfeld, (3) ((1) University of Augsburg, Germany, (2) Max Planck Institute for Solid, State Research, Stuttgart, Germany, (3) University of Florida, Gainesville,, USA)
TL;DR
This paper proposes a mechanism for interface-induced d-wave superconductivity driven by dipolar excitations near a 2D electron system, highlighting potential ways to enhance the transition temperature.
Contribution
It introduces a novel pairing mechanism involving dipolar excitations at interfaces with transition metal oxides, emphasizing the role of non-local interactions in d-wave pairing.
Findings
Superconductivity can be mediated by dipolar excitations at interfaces.
Strong on-site Coulomb repulsion favors non-local d-wave pairing.
Strategies to potentially increase the transition temperature are discussed.
Abstract
We discuss a scenario for interface-induced superconductivity involving pairing by dipolar excitations proximate to a two-dimensional electron system controlled by a transverse electric field. If the interface consists of transition metal oxide materials, the repulsive on-site Coulomb interaction is typically strong and a superconducting state is formed via exchange of non-local dipolar excitations in the d-wave channel. Perspectives to enhance the superconducting transition temperature are discussed.
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