4.8 Article

Control of Andreev Bound States Using Superconducting Phase Texture

Journal

PHYSICAL REVIEW LETTERS
Volume 130, Issue 11, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.130.116203

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Opposite phase-inversion asymmetries are observed in local tunneling spectra at the two ends of a superconductor-semiconductor-superconductor planar Josephson junction in the presence of a perpendicular magnetic field. The nonlocal spectra, however, remain phase symmetric. The experimental results agree with a theoretical model, which provides a physical explanation for the localization and control of Andreev bound states in the junction.
Andreev bound states with opposite phase-inversion asymmetries are observed in local tunneling spectra at the two ends of a superconductor-semiconductor-superconductor planar Josephson junction in the presence of a perpendicular magnetic field, while the nonlocal spectra remain phase symmetric. Spectral signatures agree with a theoretical model, yielding a physical picture in which phase textures in superconducting leads localize and control the position of Andreev bound states in the junction, demonstrating a simple means of controlling the position and size of Andreev states within a planar junction.

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