Journal Article

PreJuSER-19917

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Interaction of spin and vibrations in transport through single-molecule magnets

May, F. ; Wegewijs, M. R.FZJ* ; Hofstetter, W.

2011
Beilstein-Institut zur Förderung der Chemischen Wi Frankfurt, Main

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Please use a persistent id in citations: doi:10.3762/bjnano.2.75

Abstract: We study electron transport through a single-molecule magnet (SMM) and the interplay of its anisotropic spin with quantized vibrational distortions of the molecule. Based on numerical renormalization group calculations we show that, despite the longitudinal anisotropy barrier and small transverse anisotropy, vibrational fluctuations can induce quantum spin-tunneling (QST) and a QST-Kondo effect. The interplay of spin scattering, QST and molecular vibrations can strongly enhance the Kondo effect and induce an anomalous magnetic field dependence of vibrational Kondo side-bands.

Keyword(s): J ; molecular electronic devices (auto) ; molecular magnets (auto) ; nanoelectronic devices (auto) ; quantum dots (auto)

Note: We acknowledge A. Cornia, J. Kortus, J. Paaske and T. Costi for stimulating discussions and support from NanoSci-ERA.

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Contributing Institute(s):

1. Theoretische Nanoelektronik (PGI-2)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2011

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Database coverage:
; JCR ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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