Crossover between two different magnetization reversal modes in arrays of iron oxide nanotubes

Escrig J, Bachmann J, Jing J, Daub M, Altbir D, Nielsch K (2008)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2008

Journal

Physical Review B American Physical Society

Publisher: American Physical Society

Book Volume: 77

DOI: 10.1103/PhysRevB.77.214421

Abstract

The magnetization reversal in ordered arrays of iron oxide nanotubes of 50 nm outer diameter grown by atomic layer deposition is investigated theoretically as a function of the tube wall thickness d(w). In thin tubes (d(w)< 13 nm) the reversal of magnetization is achieved by the propagation of a vortex domain boundary, while in thick tubes (d(w)>13 nm) the reversal is driven by the propagation of a transverse domain boundary. Magnetostatic interactions between the tubes are responsible for a decrease in the coercive field in the array. Our calculations are in agreement with recently reported experimental results. We predict that the crossover between the vortex and transverse modes of magnetization reversal is a general phenomenon on the length scale considered.

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) Universidad de Chile CL Chile (CL) Universität Hamburg (UHH) DE Germany (DE)

How to cite

APA:

Escrig, J., Bachmann, J., Jing, J., Daub, M., Altbir, D., & Nielsch, K. (2008). Crossover between two different magnetization reversal modes in arrays of iron oxide nanotubes. Physical Review B, 77. https://dx.doi.org/10.1103/PhysRevB.77.214421

MLA:

Escrig, Juan, et al. "Crossover between two different magnetization reversal modes in arrays of iron oxide nanotubes." Physical Review B 77 (2008).

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