Andreev bound states at the interface of antiferromagnets and d-wave superconductors

Brian Møller Andersen; Per Hedegård

doi:10.1103/PhysRevB.66.104515

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Andreev bound states at the interface of antiferromagnets and d-wave superconductors

Brian Møller Andersen, Per Hedegård

DOI 10.1103/PhysRevB.66.104515 · Physical Review B

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Abstract

We set up a simple transfer matrix formalism to study the existence of bound states at interfaces and in junctions between antiferromagnets and d-wave superconductors. The well-studied zero energy mode at the {110} interface between an insulator and a dx2−y2 wave superconductor is spin split when the insulator is an antiferromagnet. This has, as a consequence, that any competing interface induced superconducting order parameter that breaks the time reversal symmetry needs to exceed a critical value before a charge current is induced along the interface.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown