Electron and Cooper-pair transport across a single magnetic molecule explored with a scanning tunneling microscope

J. Brand*, S. Gozdzik, N. Néel, J. L. Lado, J. Fernández-Rossier, J. Kröger

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

13 Sitaatiot (Scopus)

Abstrakti

A scanning tunneling microscope is used to explore the evolution of electron and Cooper-pair transport across single Mn-phthalocyanine molecules adsorbed on Pb(111) from tunneling to contact ranges. Normal-metal as well as superconducting tips give rise to a gradual transition of the Bardeen-Cooper-Schrieffer energy gap in the tunneling range into a zero-energy resonance close to and at contact. Supporting transport calculations show that in the normal-metal-superconductor junctions this resonance reflects the merging of in-gap Yu-Shiba-Rusinov states as well as the onset of Andreev reflection. For the superconductor-superconductor contacts, the zero-energy resonance is rationalized in terms of a finite Josephson current that is carried by phase-dependent Andreev and Yu-Shiba-Rusinov levels.

AlkuperäiskieliEnglanti
Artikkeli195429
JulkaisuPhysical Review B
Vuosikerta97
Numero19
DOI - pysyväislinkit
TilaJulkaistu - 17 toukokuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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