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Title: Magnetoresistivity of micron size (10{center{underscore}dot}0) epitaxial Co wires

Abstract

Magnetoresistivity effects in association with the magnetic domain structure were studied by using 1 {micro}m wide epitaxial (10{center{underscore}dot}0) Co wires oriented parallel and perpendicular to the magnetic easy [001] axis. The parallel wire exhibited a large anisotropy magnetoresistivity ratio of {approximately}11% at 5 K, which turned to be negative above 214 K due to the temperature variable anisotropic magnetoresistivity effect. A negative domain wall contribution to the resistivity was observed only in the temperature range from 200 K to 220 K. On the contrary, the perpendicular wire exhibited a small positive wall contribution ranging from 3 x 10{sup {minus}4} {micro}{Omega}cm at 5 K to 6.9 x 10{sup {minus}4} {micro}{Omega}cm at 300 K.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Tohoku Univ., Sendai (JP)
OSTI Identifier:
20000659
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt1; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DOMAIN STRUCTURE; COBALT; WIRES; MAGNETORESISTANCE; EXPERIMENTAL DATA; ANISOTROPY

Citation Formats

Kim, S.G., Otani, Y., Fukamichi, K., Yuasa, S., Nyvlt, M., and Katayama, T. Magnetoresistivity of micron size (10{center{underscore}dot}0) epitaxial Co wires. United States: N. p., 1999. Web. doi:10.1109/20.801006.
Kim, S.G., Otani, Y., Fukamichi, K., Yuasa, S., Nyvlt, M., & Katayama, T. Magnetoresistivity of micron size (10{center{underscore}dot}0) epitaxial Co wires. United States. doi:10.1109/20.801006.
Kim, S.G., Otani, Y., Fukamichi, K., Yuasa, S., Nyvlt, M., and Katayama, T. Wed . "Magnetoresistivity of micron size (10{center{underscore}dot}0) epitaxial Co wires". United States. doi:10.1109/20.801006.
@article{osti_20000659,
title = {Magnetoresistivity of micron size (10{center{underscore}dot}0) epitaxial Co wires},
author = {Kim, S.G. and Otani, Y. and Fukamichi, K. and Yuasa, S. and Nyvlt, M. and Katayama, T.},
abstractNote = {Magnetoresistivity effects in association with the magnetic domain structure were studied by using 1 {micro}m wide epitaxial (10{center{underscore}dot}0) Co wires oriented parallel and perpendicular to the magnetic easy [001] axis. The parallel wire exhibited a large anisotropy magnetoresistivity ratio of {approximately}11% at 5 K, which turned to be negative above 214 K due to the temperature variable anisotropic magnetoresistivity effect. A negative domain wall contribution to the resistivity was observed only in the temperature range from 200 K to 220 K. On the contrary, the perpendicular wire exhibited a small positive wall contribution ranging from 3 x 10{sup {minus}4} {micro}{Omega}cm at 5 K to 6.9 x 10{sup {minus}4} {micro}{Omega}cm at 300 K.},
doi = {10.1109/20.801006},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt1,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}