Magnetization reversal dynamics in Au/Co/Au(1 1 1) ultrathin films: Effect of roughness of the buffer layer
Identifieur interne : 000106 ( France/Analysis ); précédent : 000105; suivant : 000107Magnetization reversal dynamics in Au/Co/Au(1 1 1) ultrathin films: Effect of roughness of the buffer layer
Auteurs : A. Adanlete Adjanoh [Tunisie] ; R. Belhi [Tunisie] ; J. Vogel [France] ; O. Fruchart [France] ; M. Ayadi [Tunisie] ; K. Abdelmoula [Tunisie]Source :
- Journal of magnetism and magnetic materials [ 0304-8853 ] ; 2010.
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Abstract
We present a study of the magnetization reversal dynamics in ultrathin Au/Co/Au films with perpendicular magnetic anisotropy, for a Co thickness of 0.5, 0.7 and 1 nm. In these films, the magnetization reversal is dominated by domain nucleation for tCo=0.5, 0.7 nm and by domain wall propagation for tCo=1 nm. The prevalence of domain nucleation for the thickness range 0.5-0.7 nm is different from results reported in the literature, for the same system and for the same thickness range, where the magnetization reversal took place mainly by domain wall motion. We attribute this difference to the effect of roughness of the Au buffer layer on the morphology of the magnetic layer.
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Adanlete Adjanoh</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Département de Physique, Faculté des Sciences de Tunis, Campus Universitaire le Belvédère</s1><s2>Tunis 1060</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Belhi, R" sort="Belhi, R" uniqKey="Belhi R" first="R." last="Belhi">R. 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Abdelmoula</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Département de Physique, Faculté des Sciences de Tunis, Campus Universitaire le Belvédère</s1><s2>Tunis 1060</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of magnetism and magnetic materials</title><title level="j" type="abbreviated">J. magn. magn. mater.</title><idno type="ISSN">0304-8853</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of magnetism and magnetic materials</title><title level="j" type="abbreviated">J. magn. magn. mater.</title><idno type="ISSN">0304-8853</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Atomic force microscopy</term><term>Buffer layer</term><term>Cobalt</term><term>Coercive force</term><term>Domain wall motion</term><term>Gold</term><term>Magnetic anisotropy</term><term>Magnetic domains</term><term>Magnetization reversal</term><term>Microstructure</term><term>Perpendicular magnetic anisotropy</term><term>Roughness</term><term>Sandwich structures</term><term>Ultrathin films</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Inversion aimantation</term><term>Rugosité</term><term>Couche tampon</term><term>Anisotropie magnétique perpendiculaire</term><term>Domaine magnétique</term><term>Mouvement paroi domaine</term><term>Microstructure</term><term>Anisotropie magnétique</term><term>Force coercitive</term><term>Microscopie force atomique</term><term>Or</term><term>Couche ultramince</term><term>Cobalt</term><term>Structure sandwich</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Or</term><term>Cobalt</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We present a study of the magnetization reversal dynamics in ultrathin Au/Co/Au films with perpendicular magnetic anisotropy, for a Co thickness of 0.5, 0.7 and 1 nm. In these films, the magnetization reversal is dominated by domain nucleation for t<sub>Co</sub>=0.5, 0.7 nm and by domain wall propagation for t<sub>Co</sub>=1 nm. The prevalence of domain nucleation for the thickness range 0.5-0.7 nm is different from results reported in the literature, for the same system and for the same thickness range, where the magnetization reversal took place mainly by domain wall motion. We attribute this difference to the effect of roughness of the Au buffer layer on the morphology of the magnetic layer.</div></front></TEI><affiliations><list><country><li>France</li><li>Tunisie</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Gouvernorat de Tunis</li><li>Rhône-Alpes</li></region><settlement><li>Grenoble</li><li>Tunis</li></settlement></list><tree><country name="Tunisie"><region name="Gouvernorat de Tunis"><name sortKey="Adanlete Adjanoh, A" sort="Adanlete Adjanoh, A" uniqKey="Adanlete Adjanoh A" first="A." last="Adanlete Adjanoh">A. Adanlete Adjanoh</name></region><name sortKey="Abdelmoula, K" sort="Abdelmoula, K" uniqKey="Abdelmoula K" first="K." last="Abdelmoula">K. Abdelmoula</name><name sortKey="Ayadi, M" sort="Ayadi, M" uniqKey="Ayadi M" first="M." last="Ayadi">M. Ayadi</name><name sortKey="Belhi, R" sort="Belhi, R" uniqKey="Belhi R" first="R." last="Belhi">R. Belhi</name></country><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Vogel, J" sort="Vogel, J" uniqKey="Vogel J" first="J." last="Vogel">J. Vogel</name></region><name sortKey="Fruchart, O" sort="Fruchart, O" uniqKey="Fruchart O" first="O." last="Fruchart">O. Fruchart</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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