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The nature of charged zig-zag domains in MnAs thin films (Articolo in rivista)
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- Label
- The nature of charged zig-zag domains in MnAs thin films (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.jmmm.2006.02.083 (literal)
- Alternative label
Engel-Herbert, R; Schaadt, DM; Cherifi, S; Bauer, E; Belkhou, R; Locatelli, A; Heun, S; Pavlovska, A; Mohanty, J; Ploog, KH; Hesjedal, T (2006)
The nature of charged zig-zag domains in MnAs thin films
in Journal of magnetism and magnetic materials
(literal)
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- Engel-Herbert, R; Schaadt, DM; Cherifi, S; Bauer, E; Belkhou, R; Locatelli, A; Heun, S; Pavlovska, A; Mohanty, J; Ploog, KH; Hesjedal, T (literal)
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- ISI Web of Science (WOS) (literal)
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- Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany; Sincrotrone Trieste, I-34012 Basovizza, TS, Italy; CNRS, Lab Louis Neel, F-38042 Grenoble, France; Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA; Univ Paris 11, LURE, F-91898 Orsay, France; Lab Nazl TASC, I-34012 Basovizza, TS, Italy; Univ Waterloo, ECE Dept, Waterloo, ON N2L 3G1, Canada (literal)
- Titolo
- The nature of charged zig-zag domains in MnAs thin films (literal)
- Abstract
- We report on apparently charged domain walls in MnAs-on-GaAs(0 0 1) layers. For head-on domains, described as two domains facing each other with opposite magnetization, the domain walls of greater than or similar to 200 nm thick films exhibit a zig-zag pattern. Depending on the width of the ferromagnetic stripes, which is a function of temperature and thus the strain in the easy axis direction, the zig-zag angle 20 increases from 90 degrees in the case of wide stripes to 180 degrees (i.e., to a straight wall) for narrow stripes. The underlying domain structure was calculated using a three-dimensional micromagnetic simulator. The calculations reveal a number of distinct domain patterns as a result of the system's attempt to reduce its energy through the formation of closure domain-like patterns in the easy plane. A diamond-like state consisting of two intersecting sub-surface domain walls is the underlying magnetic structure resulting in the observed, apparently charged domain walls. The zig-zag pattern of the domain boundary is explained by stray field minimization of the diamond state along the stripe. (C) 2006 Elsevier B.V. All rights reserved. (literal)
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