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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00343292" target="_blank" >RIV/68378271:_____/10:00343292 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 fromthe 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 perpendicularmagnetization gradients are not enforced by reduction of dipolar energy. Here we present the first experimental confirmation of this expectation.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 fromthe 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 perpendicularmagnetization gradients are not enforced by reduction of dipolar energy. Here we present the first experimental confirmation of this expectation.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

New Journal of Physics

ISSN

1367-2630

e-ISSN

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Svazek periodika

12

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000277355500006

EID výsledku v databázi Scopus

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