Artículo
Abstract:
Magneto-optic (MO) imaging is based on Faraday rotation of a linearly polarized incident light beam illuminating a sensitive MO layer (MOL) placed in close contact to the sample. For in-plane magnetized layers of Lu3-xBixFe5-yGayO12 ferrimagnetic garnet films, zig-zag domain formation occurs whenever the sample stray parallel field component, H∥, changes sign. Considering the anisotropy, exchange and magnetostatic energies in the Néel tails, and the contribution of an applied magnetic field, it is possible to describe the zig-zag walls that separate domains with opposite in-plane magnetization. The size of the walls decreases with the spatial derivative of H∥. We studied the evolution of these domains as we steadily forced the change in sign of H∥ to shorter length scales, from hundreds to a few microns. We describe the samples used to control the change in sign of H∥ at the MOL plane, and we analyze the images that evolve from zig-zag walls to much more complex closed domain structures. © 2007 Elsevier B.V. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Magneto-optic imaging of domain walls in ferrimagnetic garnet films |
| Autor: | Ferrari, H.; Bekeris, V.; Johansen, T.H. |
| Filiación: | Physics Department, FCEyN, UBA, Buenos Aires, Argentina CONICET, Argentina Department of Physics, The University of Oslo, Norway |
| Palabras clave: | Magneto-optics; Zig-zag domain walls; Domain structures; Garnet films; Magnetized layers; Magneto-optic imaging; Anisotropy; Ferroelectric films; Imaging techniques; Light polarization; Magnetic fields; Magnetooptical effects; Magnetic domains |
| Año: | 2007 |
| Volumen: | 398 |
| Número: | 2 |
| Página de inicio: | 476 |
| Página de fin: | 479 |
| DOI: | http://dx.doi.org/10.1016/j.physb.2007.05.015 |
| Título revista: | Physica B: Condensed Matter |
| Título revista abreviado: | Phys B Condens Matter |
| ISSN: | 09214526 |
| CODEN: | PHYBE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v398_n2_p476_Ferrari |
Referencias:
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Citas:
---------- APA ----------
Ferrari, H., Bekeris, V. & Johansen, T.H. (2007) . Magneto-optic imaging of domain walls in ferrimagnetic garnet films. Physica B: Condensed Matter, 398(2), 476-479.http://dx.doi.org/10.1016/j.physb.2007.05.015
---------- CHICAGO ----------
Ferrari, H., Bekeris, V., Johansen, T.H. "Magneto-optic imaging of domain walls in ferrimagnetic garnet films" . Physica B: Condensed Matter 398, no. 2 (2007) : 476-479.http://dx.doi.org/10.1016/j.physb.2007.05.015
---------- MLA ----------
Ferrari, H., Bekeris, V., Johansen, T.H. "Magneto-optic imaging of domain walls in ferrimagnetic garnet films" . Physica B: Condensed Matter, vol. 398, no. 2, 2007, pp. 476-479.http://dx.doi.org/10.1016/j.physb.2007.05.015
---------- VANCOUVER ----------
Ferrari, H., Bekeris, V., Johansen, T.H. Magneto-optic imaging of domain walls in ferrimagnetic garnet films. Phys B Condens Matter. 2007;398(2):476-479.http://dx.doi.org/10.1016/j.physb.2007.05.015
