Size effects in ordered arrays of magnetic nanotubes: Pick your reversal mode

Bachmann J, Escrig J, Pitzschel K, Montero Moreno JM, Jing J, Goerlitz D, Altbir D, Nielsch K (2009)

Publication Status: Published

Publication Type: Journal article

Publication year: 2009

Journal

Journal of Applied Physics AIP Publishing

Publisher: American Institute of Physics (AIP)

Book Volume: 105

DOI: 10.1063/1.3074109

Abstract

Ordered arrays of magnetic nanotubes are prepared by combining a porous template (anodic alumina) with a self-limiting gas-solid chemical reaction (atomic layer deposition). The geometric parameters can thus be tuned accurately (tube length of 1-50 mu m, diameter of 20-150 nm, and wall thickness of 1-40 nm), which enables one to systematically study how confinement and anisotropy effects affect the magnetic properties. In particular, the wall thickness of such ordered Fe(3)O(4) nanotubes has a nonmonotonic influence on their coercive field. Theoretical models reproduce the size effects that are experimentally observed and interpret them as originating from a crossover between two distinct modes of magnetization reversal. (c) 2009 American Institute of Physics. [DOI: 10.1063/1.3074109]

Authors with CRIS profile

Julien Bachmann Lehrstuhl für Chemistry of thin film materials

Involved external institutions

Max-Planck-Institut für Mikrostrukturphysik (MSP) / Max Planck Institute for Microstructure Physics DE Germany (DE) Universität Hamburg (UHH) DE Germany (DE) Universidad de Chile CL Chile (CL)

How to cite

APA:

Bachmann, J., Escrig, J., Pitzschel, K., Montero Moreno, J.M., Jing, J., Goerlitz, D.,... Nielsch, K. (2009). Size effects in ordered arrays of magnetic nanotubes: Pick your reversal mode. Journal of Applied Physics, 105. https://dx.doi.org/10.1063/1.3074109

MLA:

Bachmann, Julien, et al. "Size effects in ordered arrays of magnetic nanotubes: Pick your reversal mode." Journal of Applied Physics 105 (2009).

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