About: Temperature dependent rotation of the uniaxial easy axis of magnetization in granular SiO2–(Co/Fe/CoFe2)

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About: Temperature dependent rotation of the uniaxial easy axis of magnetization in granular SiO2–(Co/Fe/CoFe2)–Si(1 1 1) multilayers Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have observed temperature dependent rotation of the uniaxial easy axis of magnetization and introduced the phenomenon of the superspin reorientation transition (SSRT) for the nanogranular thin films and multilayers. The effect is demonstrated on the nanogranular SiO2–M(x)–Si(1 1 1) multilayers, where M is the metal (Co, Fe or CoFe2) of the nominal thickness x = 3, 5 and 10 nm, respectively. The morphology and layer thickness have been examined using the transmission electron microscopy, X-ray reflectivity measurement and atomic force microscopy. Magnetic property measurements demonstrated that the orientation of the uniaxial in-plane easy axis of magnetization given by the film shape anisotropy was thickness independent at temperatures above 200 K. Below 50 K, the films shape anisotropy has been overcome and the uniaxial easy axis was rotated into different directions for each samples series, forming an angles from 40 up to 150° with respect to the film plane. Such effect of the low temperature magnetization rotation has been attributed to the specific arrangement of the nanoparticles in the individual layers and has been assigned to the SSRT phenomena. We have observed temperature dependent rotation of the uniaxial easy axis of magnetization and introduced the phenomenon of the superspin reorientation transition (SSRT) for the nanogranular thin films and multilayers. The effect is demonstrated on the nanogranular SiO2–M(x)–Si(1 1 1) multilayers, where M is the metal (Co, Fe or CoFe2) of the nominal thickness x = 3, 5 and 10 nm, respectively. The morphology and layer thickness have been examined using the transmission electron microscopy, X-ray reflectivity measurement and atomic force microscopy. Magnetic property measurements demonstrated that the orientation of the uniaxial in-plane easy axis of magnetization given by the film shape anisotropy was thickness independent at temperatures above 200 K. Below 50 K, the films shape anisotropy has been overcome and the uniaxial easy axis was rotated into different directions for each samples series, forming an angles from 40 up to 150° with respect to the film plane. Such effect of the low temperature magnetization rotation has been attributed to the specific arrangement of the nanoparticles in the individual layers and has been assigned to the SSRT phenomena. (en)
Title	Temperature dependent rotation of the uniaxial easy axis of magnetization in granular SiO2–(Co/Fe/CoFe2)–Si(1 1 1) multilayers Temperature dependent rotation of the uniaxial easy axis of magnetization in granular SiO2–(Co/Fe/CoFe2)–Si(1 1 1) multilayers (en)
skos:prefLabel	Temperature dependent rotation of the uniaxial easy axis of magnetization in granular SiO2–(Co/Fe/CoFe2)–Si(1 1 1) multilayers Temperature dependent rotation of the uniaxial easy axis of magnetization in granular SiO2–(Co/Fe/CoFe2)–Si(1 1 1) multilayers (en)
skos:notation	RIV/61388980:_____/14:00426986!RIV15-GA0-61388980
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/10/1250)
http://linked.open...iv/cisloPeriodika	Jan
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Klementová, Mariana
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	Ústav anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	49730
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/14:00426986
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	superspin reorientation transition (SSRT); single-domain nanoparticles; high temperature in-plane easy axis; low temperature rotation (en)
http://linked.open.../riv/klicoveSlovo	high temperature in-plane easy axis low temperature rotation single-domain nanoparticles superspin reorientation transition (SSRT)
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[2D9F828578AA]
http://linked.open...i/riv/nazevZdroje	Applied Surface Science
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Multifunctional nanoparticles: smart preparation methods and study of their physical properties
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	289
http://linked.open...iv/tvurceVysledku	Klementová, Mariana Lančok, Ján Vejpravová, Jana Pacáková, Barbara
http://linked.open...ain/vavai/riv/wos	000328635700038
issn	0169-4332
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.apsusc.2013.10.147

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