Theory of a single magnetic impurity on a thin metal film in proximity to a superconductor

Ortuzar, Jon; Pascual, José; Bergeret, F. S.; Cazalilla, Miguel A.

doi:10.1103/physrevb.108.024511

Phys. Rev. B

2023

DOI: 10.1103/physrevb.108.024511

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Theory of a single magnetic impurity on a thin metal film in proximity to a superconductor

Jon Ortuzar¹,

José Pascual²,

F. S. Bergeret³

et al.

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Cited by 3 publications

References 48 publications

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Shaping Graphene Superconductivity with Nanometer Precision

Cortés‐del Río,

Trivini,

Pascual

et al. 2023

Small

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Graphene holds great potential for superconductivity due to its pure 2D nature, the ability to tune its carrier density through electrostatic gating, and its unique, relativistic‐like electronic properties. At present, still far from controlling and understanding graphene superconductivity, mainly because the selective introduction of superconducting properties to graphene is experimentally very challenging. Here, a method is developed that enables shaping at will graphene superconductivity through a precise control of graphene‐superconductor junctions. The method combines the proximity effect with scanning tunnelling microscope (STM) manipulation capabilities. Pb nano‐islands are first grown that locally induce superconductivity in graphene. Using a STM, Pb nano‐islands can be selectively displaced, over different types of graphene surfaces, with nanometre scale precision, in any direction, over distances of hundreds of nanometres. This opens an exciting playground where a large number of predefined graphene‐superconductor hybrid structures can be investigated with atomic scale precision. To illustrate the potential, a series of experiments are performed, rationalized by the quasi‐classical theory of superconductivity, going from the fundamental understanding of superconductor‐graphene‐superconductor heterostructures to the construction of superconductor nanocorrals, further used as “portable” experimental probes of local magnetic moments in graphene.

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Shaping Graphene Superconductivity with Nanometer Precision

Cortés‐del Río,

Trivini,

Pascual

et al. 2023

Small

View full text Add to dashboard Cite

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Fermi level tuning in Sn1-xPbxTe/Pb heterostructure via changing interface roughness

Liu,

Yi,

Xie

et al. 2024

Sci. China Phys. Mech. Astron.

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Scanning tunneling spectroscopy study of proximity superconductivity in finite-size quantized surface states

Schneider,

von Bredow,

Kim

et al. 2024

Phys. Rev. B

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Theory of a single magnetic impurity on a thin metal film in proximity to a superconductor

Cited by 3 publications

References 48 publications

Shaping Graphene Superconductivity with Nanometer Precision

Shaping Graphene Superconductivity with Nanometer Precision

Fermi level tuning in Sn1-xPbxTe/Pb heterostructure via changing interface roughness

Scanning tunneling spectroscopy study of proximity superconductivity in finite-size quantized surface states

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