Nanotube magnetism

Y. C. Sui; R. Skomski; K. D. Sorge; D. J. Sellmyer

doi:10.1063/1.1655692

Nanotube magnetism

Y. C. Sui, R. Skomski, K. D. Sorge, D. J. Sellmyer

Physics and Astronomy

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194 Scopus citations

Abstract

The production of FePt and Fe ₃O ₄ by hydrogen reduction in nanotubes of porous alumina templates was investigated. Loading porous alumina with Fe chloride and Pt chloride mixture was followed by hydrogen reduction which led to the formation of ferromagnetic FePt nanotubes in the template. A tubular random-anisotropy model yielded a diameter and anisotropy dependent transition from a curling type mode to a localized mode. The results show that the magnetization reversal mode in the oxide tubes is of curling type whereas in the FePt tubes, reversal was realized by localized magnetization reversal.

Original language	English (US)
Pages (from-to)	1525-1527
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	9
DOIs	https://doi.org/10.1063/1.1655692
State	Published - Mar 1 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Nanotube magnetism",

abstract = "The production of FePt and Fe 3O 4 by hydrogen reduction in nanotubes of porous alumina templates was investigated. Loading porous alumina with Fe chloride and Pt chloride mixture was followed by hydrogen reduction which led to the formation of ferromagnetic FePt nanotubes in the template. A tubular random-anisotropy model yielded a diameter and anisotropy dependent transition from a curling type mode to a localized mode. The results show that the magnetization reversal mode in the oxide tubes is of curling type whereas in the FePt tubes, reversal was realized by localized magnetization reversal.",

author = "Sui, {Y. C.} and R. Skomski and Sorge, {K. D.} and Sellmyer, {D. J.}",

year = "2004",

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T1 - Nanotube magnetism

AU - Sui, Y. C.

AU - Skomski, R.

AU - Sorge, K. D.

AU - Sellmyer, D. J.

PY - 2004/3/1

Y1 - 2004/3/1

N2 - The production of FePt and Fe 3O 4 by hydrogen reduction in nanotubes of porous alumina templates was investigated. Loading porous alumina with Fe chloride and Pt chloride mixture was followed by hydrogen reduction which led to the formation of ferromagnetic FePt nanotubes in the template. A tubular random-anisotropy model yielded a diameter and anisotropy dependent transition from a curling type mode to a localized mode. The results show that the magnetization reversal mode in the oxide tubes is of curling type whereas in the FePt tubes, reversal was realized by localized magnetization reversal.

AB - The production of FePt and Fe 3O 4 by hydrogen reduction in nanotubes of porous alumina templates was investigated. Loading porous alumina with Fe chloride and Pt chloride mixture was followed by hydrogen reduction which led to the formation of ferromagnetic FePt nanotubes in the template. A tubular random-anisotropy model yielded a diameter and anisotropy dependent transition from a curling type mode to a localized mode. The results show that the magnetization reversal mode in the oxide tubes is of curling type whereas in the FePt tubes, reversal was realized by localized magnetization reversal.

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U2 - 10.1063/1.1655692

DO - 10.1063/1.1655692

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

ER -

Nanotube magnetism

Abstract

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