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Applied Physics Letters / Volume 97 / Issue 21 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 97, 212503 (2010); http://dx.doi.org/10.1063/1.3520146 (3 pages)

An individual iron nanowire-filled carbon nanotube probed by micro-Hall magnetometry

K. Lipert1,2, S. Bahr1, F. Wolny1, P. Atkinson1, U. Weißker1, T. Mühl1, O. G. Schmidt1, B. Büchner1, and R. Klingeler2

1Leibniz Institute for Solid State and Materials Research IFW, 01069 Dresden, Germany
2Kirchhoff Institute for Physics, INF 227, D-69120 Heidelberg, Germany

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(Received 18 October 2010; accepted 4 November 2010; published online 22 November 2010)

We report on the magnetic properties of an individual, high-quality single-crystalline iron nanowire with diameter d = 26 nm. The nanowire is embedded in a carbon nanotube which provides complete shielding against oxidation. Magnetization reversal is associated with domain wall formation where domain nucleation is initiated by curling. The observed nucleation fields of up to 900 mT are much higher than reported previously and nearly reach the shape anisotropy field of iron nanowires.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

carbon nanotubes, iron, magnetic anisotropy, magnetic domain walls, magnetisation reversal, nanomagnetics, nanowires, nucleation, oxidation

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3520146

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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