About: The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory

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About: The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The magneto-optical gradient effect decorates the boundaries of inplane domains even at perpendicular incidence of light in an optical polarization microscope. For its explanation, magneto-optical diffraction theory was previously used to derive it from the same gyrotropic interaction as the Kerr effect. In order to explain the symmetry of the observed contrast on bulk ferromagnetic crystals, planar as well as perpendicular subsurface gradients in the magnetization had to be assumed. This was particularly needed when the surface magnetizations in neighboring domains pointed headon and a gradient contrast appeared also in conditions of vanishing gyrotropic interaction at the surface. Such contrast should not appear in very thin films where perpendicular magnetization gradients are not enforced by reduction of dipolar energy. Here we present the first experimental confirmation of this expectation. The magneto-optical gradient effect decorates the boundaries of inplane domains even at perpendicular incidence of light in an optical polarization microscope. For its explanation, magneto-optical diffraction theory was previously used to derive it from the same gyrotropic interaction as the Kerr effect. In order to explain the symmetry of the observed contrast on bulk ferromagnetic crystals, planar as well as perpendicular subsurface gradients in the magnetization had to be assumed. This was particularly needed when the surface magnetizations in neighboring domains pointed headon and a gradient contrast appeared also in conditions of vanishing gyrotropic interaction at the surface. Such contrast should not appear in very thin films where perpendicular magnetization gradients are not enforced by reduction of dipolar energy. Here we present the first experimental confirmation of this expectation. (en)
Title	The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory (en)
skos:prefLabel	The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory (en)
skos:notation	RIV/68378271:_____/10:00343292!RIV11-AV0-68378271
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Kamberský, Vladimír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	269233
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/10:00343292
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	magnetooptics; magnetic domains; light diffraction (en)
http://linked.open.../riv/klicoveSlovo	magnetooptics magnetic domains light diffraction
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[F168E269AC7F]
http://linked.open...i/riv/nazevZdroje	New Journal of Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	12
http://linked.open...iv/tvurceVysledku	Schäfer, R. Kamberský, Vladimír Schultz, L. Hamann, C. McCord, J.
http://linked.open...ain/vavai/riv/wos	000277355500006
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films
issn	1367-2630
number of pages	10 (xsd:int)
is http://linked.open...avai/riv/vysledek of	The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory The magneto-optical gradient effect in anexchange-biased thin film: experimental evidencefor classical diffraction theory

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