Issue |
Europhys. Lett.
Volume 70, Number 6, June 2005
|
|
---|---|---|
Page(s) | 803 - 809 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2005-10035-1 | |
Published online | 11 May 2005 |
Domain wall resistance in
-nanowires
1
Experimentelle Physik, Universität Duisburg-Essen - 47057 Duisburg, Germany
2
Fachbereich Physik, Technische Universität Kaiserslautern 67663 Kaiserslautern, Germany
3
Theoretische Physik, Universität Duisburg-Essen - 47057 Duisburg, Germany
4
Department of Physics, University of York - York YO105DD, UK
Received:
14
January
2005
Accepted:
18
April
2005
The clear separation of the domain wall magnetoresistance from the
anisotropic magnetoresistance has been successfully achieved by
investigating the transversal magnetoresistance of individual
-nanowires. Since the magnetic easy axis of
this nanowires is out of plane, the magnetization is always
perpendicular to the current direction when applying a magnetic
field transversally. Most importantly, even the domain walls do
not give rise to an anisotropic resistance contribution by
themselves under these conditions, and thus the pure domain wall
magnetoresistance can be measured. The interpretation of the
resistance behavior is confirmed by Monte Carlo simulations giving
the magnetization distribution during the magnetization reversal
process. It can be shown that the observed resistance behavior
reflects the dependence of the domain wall magnetoresistance on
the domain wall structure.
PACS: 73.63.-b – Electronic transport in nanoscale materials and structures / 75.47.-m – Magnetotransport phenomena; materials for magnetotransport / 75.60.Ch – Domain walls and domain structure
© EDP Sciences, 2005
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