Electron and Cooper-pair transport across a single magnetic molecule explored with a scanning tunneling microscope
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Title: | Electron and Cooper-pair transport across a single magnetic molecule explored with a scanning tunneling microscope |
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Authors: | Brand, Jonathan | Gozdzik, Sandra | Néel, Nicolas | Lado, Jose L. | Fernández-Rossier, Joaquín | Kröger, Jörg |
Research Group/s: | Grupo de Nanofísica |
Center, Department or Service: | Universidad de Alicante. Departamento de Física Aplicada |
Keywords: | Scanning tunneling microscope | Electron and Cooper-pair transport | Single magnetic molecule |
Knowledge Area: | Física de la Materia Condensada |
Issue Date: | 17-May-2018 |
Publisher: | American Physical Society |
Citation: | Physical Review B. 2018, 97: 195429. doi:10.1103/PhysRevB.97.195429 |
Abstract: | 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. |
Sponsor: | Financial support by the Deutsche Forschungsgemeinschaft through Grant No. KR 2912/10-1, the FCT (Projects No. PTDC/FIS-NAN/4662/2014 and No. P2020-PTDC/FISNAN/3668/2014), and the MINECO-Spain (MAT2016-78625-C2) is acknowledged. J.L.L. acknowledges financial support from the ETH Zurich Postdoctoral Fellowship program. |
URI: | http://hdl.handle.net/10045/76418 |
ISSN: | 1098-0121 (Print) | 1550-235X (Online) |
DOI: | 10.1103/PhysRevB.97.195429 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | ©2018 American Physical Society |
Peer Review: | si |
Publisher version: | https://doi.org/10.1103/PhysRevB.97.195429 |
Appears in Collections: | INV - Grupo de Nanofísica - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2018_Brand_etal_PhysRevB.pdf | 942,35 kB | Adobe PDF | Open Preview | |
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