Simulations and experiments on magneto-optical diffraction by an array of epitaxial Fe(001) microsquares | Zendy

P. GarcíaMochales | Zendy; J. L. CostaKrämer | Zendy; G. Armelles | Zendy; F. Briones | Zendy; Daniel Jaque | Zendy; J. I. Martı́n | Zendy; J. L. Vicent | Zendy

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Simulations and experiments on magneto-optical diffraction by an array of epitaxial Fe(001) microsquares

Author(s) -

P. GarcíaMochales,

J. L. CostaKrämer,

G. Armelles,

F. Briones,

Daniel Jaque,

J. I. Martı́n,

J. L. Vicent

Publication year - 2002

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1514388

Subject(s) - diffraction , magnetization , condensed matter physics , kerr effect , amplitude , physics , field (mathematics) , transverse plane , magnetic field , signal (programming language) , optics , magneto , magneto optic kerr effect , materials science , magnet , mathematics , structural engineering , nonlinear system , quantum mechanics , computer science , pure mathematics , programming language , engineering

3 pages, 3 figures.Magneto-optic (MO) experimental and computational studies are reported on arrays of epitaxial Fe(001) microsquares. Measuring the transverse Kerr signal, in both reflected and diffracted spots, when the array is exposed to a rotating magnetic field allows the quantification of the magnetization inhomogeneties within the microsquares. The MO signal at diffracted spots is extremely sensitive to magnetization inhomogeneities, while working at a large constant field amplitude eliminates uncertainties due to domain-wall movements. The presence of anomalous peaks at the diffracted MO response is unambiguously assigned to the matching of inhomogeneities of the magnetization distribution to the corresponding pattern periodicity. Interaction between microsquares appears as a second-order effect.Work supported\udby the Spanish CICYT under Contract Nos. MAT99-0724\udand MAT99-1063. One of the authors (P.G.-M.) is supported\udby the Comunidad de Madrid through its postdoctoral program.Peer reviewe

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