Control of Andreev Reflection via a Single-Molecule Orbital
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
2025-04-11
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
Series
Physical Review Letters, Volume 134, issue 14, pp. 1-7
Abstract
Charge transport across a single-molecule junction fabricated from a normal-metal tip, a phthalocyanine, and a conventional superconductor in a scanning tunneling microscope is explored as a function of the gradually closed vacuum gap. The phthalocyanine (2H-Pc) molecule and its pyrrolic-hydrogen-abstracted derivative (Pc) exhibit vastly different behavior. Andreev reflection across the 2H-Pc contact exhibits a temporary enhancement that diminishes again with increasing conductance. In contrast, the single-Pc junction lacks Andreev reflection in the same conductance range. Spectroscopies and supporting nonequilibrium Green’s function calculations highlight the importance of a molecular orbital close to the Fermi energy for Andreev reflection.Description
Keywords
Other note
Citation
Meyer, L, Lado, J, Néel, N & Kröger, J 2025, ' Control of Andreev Reflection via a Single-Molecule Orbital ', Physical Review Letters, vol. 134, no. 14, 146201, pp. 1-7 . https://doi.org/10.1103/PhysRevLett.134.146201