Single-walled carbon nanotube weak links in Kondo regime with zero-field splitting
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© 2009 American Physical Society (APS). This is the accepted version of the following article: Wu, F. & Danneau, R. & Queipo, P. & Kauppinen, E. & Tsuneta, T. & Hakonen, Pertti J. 2009. Single-walled carbon nanotube weak links in Kondo regime with zero-field splitting. Physical Review B. Volume 79, Issue 7. 073404/1-4. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.79.073404, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.79.073404.
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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073404/1-4
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Physical Review B, Volume 79, Issue 7
Abstract
We have investigated proximity-induced supercurrents in single-walled carbon nanotubes in the Kondo regime and compared them with supercurrents obtained on the same tube with Fabry-Pérot resonances. Our data display a wide distribution of Kondo temperatures TK=1–14 K, and the measured critical current ICM vs TK displays two distinct branches; these branches, distinguished by zero-field splitting of the normal-state Kondo conductance peak, differ by an order of magnitude at large values of TK. Evidence for renormalization of Andreev levels in Kondo regime is also found.Description
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Wu, F. & Danneau, R. & Queipo, P. & Kauppinen, E. & Tsuneta, T. & Hakonen, Pertti J. 2009. Single-walled carbon nanotube weak links in Kondo regime with zero-field splitting. Physical Review B. Volume 79, Issue 7. 073404/1-4. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.79.073404