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Magneto‐transport studies of single ferromagnetic nanowire
Author(s) -
Rheem Y.,
Yoo B.Y.,
Beyermann W. P.,
Myung N. V.
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200777135
Subject(s) - nanowire , magnetoresistance , ferromagnetism , materials science , condensed matter physics , anisotropy , current density , nanotechnology , magnetic field , optics , physics , quantum mechanics
The magnetotransport properites of individual ferromagnetic nanowires (e.g. Ni, Co 23 Ni 77 , Ni 85 Fe 15 ) with 200 nm diameters were investigated. The ferromagnetic nanowires were successfully electrodeposited within an anodized alumina by controlling solution composition, temperature, and current density. Using a magnetic assembly technique, single nanowire was successfully bridged across microfabricated gold elecrodes. The temperature coefficient of resistance for ferromagnetic nanowires was lower than the bulk because of a larger residual resistance from increased electrical scattering in one‐dimensional structures. The ferromagnetic nanowires showed typical anisotropic magnetoresistance where the magnetoresistance ratio was lower than bulk values. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)