Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires

We report on the magnetization configurations in single NiFe cylindrical nanowires grown by template-assisted electrodeposition. Angular anisotropic magnetoresistance measurements reveal that a three-dimensional helical domain wall is formed naturally upon relaxation from a saturated state. Micromag...

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Main Authors:	Wong, D. W., Purnama, Indra, Lim, Gerard Joseph, Gan, Wei Liang, Murapaka, Chandra, Lew, Wen Siang
Other Authors:	School of Physical and Mathematical Sciences
Format:	Article
Language:	English
Published:	2017
Subjects:	Nanowires Magnetoresistance
Online Access:	https://hdl.handle.net/10356/83556 http://hdl.handle.net/10220/42679
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-83556
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spelling	sg-ntu-dr.10356-835562023-02-28T19:31:24Z Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires Wong, D. W. Purnama, Indra Lim, Gerard Joseph Gan, Wei Liang Murapaka, Chandra Lew, Wen Siang School of Physical and Mathematical Sciences Nanowires Magnetoresistance We report on the magnetization configurations in single NiFe cylindrical nanowires grown by template-assisted electrodeposition. Angular anisotropic magnetoresistance measurements reveal that a three-dimensional helical domain wall is formed naturally upon relaxation from a saturated state. Micromagnetic simulations support the helical domain wall properties and its reversal process, which involves a splitting of the clockwise and anticlockwise vortices. When a pulsed current is applied to the nanowire, the helical domain wall propagation is observed with a minimum current density needed to overcome its intrinsic pinning. NRF (Natl Research Foundation, S’pore) Published version 2017-06-13T08:00:33Z 2019-12-06T15:25:32Z 2017-06-13T08:00:33Z 2019-12-06T15:25:32Z 2016 Journal Article Wong, D. W., Purnama, I., Lim, G. J., Gan, W. L., Murapaka, C., & Lew, W. S. (2016). Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires. Journal of Applied Physics, 119(15), 153902-. 0021-8979 https://hdl.handle.net/10356/83556 http://hdl.handle.net/10220/42679 10.1063/1.4946753 en Journal of Applied Physics © 2016 American Institute of Physics (AIP). This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4946753]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 5 p. application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	Nanowires Magnetoresistance
spellingShingle	Nanowires Magnetoresistance Wong, D. W. Purnama, Indra Lim, Gerard Joseph Gan, Wei Liang Murapaka, Chandra Lew, Wen Siang Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires
description	We report on the magnetization configurations in single NiFe cylindrical nanowires grown by template-assisted electrodeposition. Angular anisotropic magnetoresistance measurements reveal that a three-dimensional helical domain wall is formed naturally upon relaxation from a saturated state. Micromagnetic simulations support the helical domain wall properties and its reversal process, which involves a splitting of the clockwise and anticlockwise vortices. When a pulsed current is applied to the nanowire, the helical domain wall propagation is observed with a minimum current density needed to overcome its intrinsic pinning.
author2	School of Physical and Mathematical Sciences
author_facet	School of Physical and Mathematical Sciences Wong, D. W. Purnama, Indra Lim, Gerard Joseph Gan, Wei Liang Murapaka, Chandra Lew, Wen Siang
format	Article
author	Wong, D. W. Purnama, Indra Lim, Gerard Joseph Gan, Wei Liang Murapaka, Chandra Lew, Wen Siang
author_sort	Wong, D. W.
title	Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires
title_short	Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires
title_full	Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires
title_fullStr	Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires
title_full_unstemmed	Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires
title_sort	current-induced three-dimensional domain wall propagation in cylindrical nife nanowires
publishDate	2017
url	https://hdl.handle.net/10356/83556 http://hdl.handle.net/10220/42679
_version_	1759855604473528320

Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires

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