Die u:cris Detailansicht:

Metallic bundles of single-wall carbon nanotubes probed by electron spin resonance

Autor(en)
Ferenc Simon, D. Quintavalle, A Jánossy, B. Nafradi, László Forro, Hans Kuzmany, Frank Hauke, Andreas Hirsch, Jens Mende, Michael Mehring
Abstrakt

C59N magnetic fullerenes inside single-wall carbon nanotubes (SWCNTs) are used to probe the density of states (DOS) on the host tubes using electron spin resonance (ESR). The C59N radicals are separated by C-60 fullerenes to prevent dimerization and C59N-C-60 heterodimers are formed at low temperatures. The electron spin-lattice relaxation time, T-1, of the heterodimers is deduced from the homogeneous ESR line-width. The analysis is supported by saturation ESR studies. The inverse of the heterodimer T-1 follows a linear behavior in the 20-300 K temperature range, the so-called Korringa law, evidencing a metallic DOS on all tubes in a bundle.

Organisation(en)
Dynamik Kondensierter Systeme
Externe Organisation(en)
Budapest University of Technology and Economics, École polytechnique fédérale de Lausanne, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universität Stuttgart
Journal
Physica Status Solidi. B: Basic Research
Band
244
Seiten
3885-3889
Anzahl der Seiten
5
ISSN
0370-1972
DOI
https://doi.org/10.1002/pssb.200776174
Publikationsdatum
2007
Peer-reviewed
Ja
ÖFOS 2012
103015 Kondensierte Materie
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/e404df0c-f8cd-4e84-9128-f9ae35ee1c97