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

by Galambos, M, Fabian, G, Simon, F, Ciric, L, Forro, L, Korecz, L, Rockenbauer, A, Koltai, J, Zólyomi, V, Rusznyák, Á, Kürti, J, Nemes, N M, Dóra, B, Peterlik, H, Pfeiffer, R, Kuzmany, H and Pichler, T

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. (C) 2009 WILEY-VCH Verlaq GmbH & Co. KGaA, Weinheim

Reference:

Identifying the electron spin resonance of conduction electrons in alkali doped SWCNTs (Galambos, M, Fabian, G, Simon, F, Ciric, L, Forro, L, Korecz, L, Rockenbauer, A, Koltai, J, Zólyomi, V, Rusznyák, Á, Kürti, J, Nemes, N M, Dóra, B, Peterlik, H, Pfeiffer, R, Kuzmany, H and Pichler, T), In Physica Status Solidi B-Basic Solid State Physics, volume 246, 2009.

Bibtex Entry:

@article{ ISI:000272904100080,
author = {Galambos, M and Fabian, G and Simon, F and Ciric, L and Forro, L
   and Korecz, L and Rockenbauer, A and Koltai, J and Zólyomi, V and
   Rusznyák, Á and Kürti, J and Nemes, N M and Dóra, B and Peterlik,
   H and Pfeiffer, R and Kuzmany, H and Pichler, T},
title = {Identifying the electron spin resonance of conduction electrons in
   alkali doped SWCNTs},
journal = {Physica Status Solidi B-Basic Solid State Physics},
year = {2009},
volume = {246},
number = {11-12, Sp. Iss. SI},
pages = {2760-2763},
month = {DEC},
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. (C)
   2009 WILEY-VCH Verlaq GmbH \& Co. KGaA, Weinheim},
keywords = {Luttinger ; ESR ; SWCNT ; Alkali doped},
doi = {10.1002/pssb.200982330},
issn = {0370-1972},
unique-ID = {ISI:000272904100080}
}