Ion beam induced modification of exchange interaction and spin-orbit coupling in the Co2FeSi Heusler compound

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F07%3A00016562" target="_blank" >RIV/61989100:27350/07:00016562 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Ion beam induced modification of exchange interaction and spin-orbit coupling in the Co2FeSi Heusler compound
Original language description
A Co2FeSi ( CFS) film with L2(1) structure was irradiated with different fluences of 30 keV Ga+ ions. Structural modifications were subsequently studied using the longitudinal ( LMOKE) and quadratic ( QMOKE) magneto-optical Kerr effect. Both the coercivity and the LMOKE amplitude were found to show a similar behaviour upon irradiation: they are nearly constant up to ion fluences of approximate to 6 x 10(15) ion cm(-2), while they decrease with further increasing fluences and finally vanish at a fluenceof approximate to 9 x 10(16) ion cm(-2), when the sample becomes paramagnetic. However, contrary to this behaviour, the QMOKE signal nearly vanishes even for the smallest applied fluence of 3 x 10(14) ion cm(-2). We attribute this reduction of the QMOKEsignal to an irradiation-induced degeneration of second or higher order spin - orbit coupling, which already happens at small fluences of 30 keV Ga+ ions. On the other hand, the reduction of coercivity and LMOKE signal with high ion fluen
Czech name
Změny výměnné interakce a spin orbitální vazby způsobené iontovým svazkem v Co2FeSi Heuslerově slitině
Czech description
Změny výměnné interakce a spin orbitální vazby způsobené iontovým svazkem v Co2FeSi Heuslerově slitině

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/GA202%2F06%2F0531" target="_blank" >GA202/06/0531: Reflection and waveguiding effects in magnetic nanostructures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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