Identifying the electron spin resonance of conduction electrons in alkali doped SWCNTs

M Galambos, Gabor Fabian, Ferenc Simon (Korresp. Autor*in), Luka Ciric, László Forro, László Korecz, Antal Rockenbauer, János Koltai, Viktor Zolyomi, Á Rusznyák, Jenö Kürti, Norbert M. Nemes, Balazs Dora, Herwig Peterlik, Rudolf Pfeiffer, Hans Kuzmany, Thomas Pichler

Veröffentlichungen: Beitrag in BuchBeitrag in Konferenzband

Abstract

We study the electron spin resonance (ESR) signal of pristine and potassium doped SWCNTs. We identify signals of a superparamagnetic background, a low intensity impurity, and of the conduction electron spin resonance (CESR). The latter only appears upon the alkali atom doping. To identify the CESR signal, we critically assess whether it could come from residual graphitic carbon, which we clearly exclude. We give accurate values for the signal intensities and the corresponding concentration of spins and for the g-factors. The CESR signal intensity allows to determine the density of states on the SWCNT assembly.
OriginalspracheEnglisch
TitelElectronic Properties of Novel Materials
VerlagIWEPNM
Seiten2760-2763
Seitenumfang4
DOIs
PublikationsstatusVeröffentlicht - 2009

Publikationsreihe

ReihePhysica Status Solidi. B: Basic Research
Nummer11-12
Band246
ISSN0370-1972

ÖFOS 2012

  • 1030 Physik, Astronomie
  • 103009 Festkörperphysik
  • 210006 Nanotechnologie

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