000079107 001__ 79107
000079107 005__ 20190523112148.0
000079107 0247_ $$2doi$$a10.4028/www.scientific.net/SSP.257.60
000079107 0248_ $$2sideral$$a97106
000079107 037__ $$aART-2017-97106
000079107 041__ $$aeng
000079107 100__ $$0(orcid)0000-0003-1029-3751$$aRubín, J.$$uUniversidad de Zaragoza
000079107 245__ $$aPerpendicular magnetic anisotropy and intralayer interactions in a single layer of CoPt nanoparticles
000079107 260__ $$c2017
000079107 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079107 5203_ $$aThe multilayer films Al2O3/tCo Co/tPt Pt]N, produced by sequential deposition of Co and Pt on alumina consist in layers of CoPt alloyed nanoparticles. They show perpendicular magnetic anisotropy (PMA) below a freezing temperature Tf, an asperomagnetic-like phase below that temperature, and hard ferromagnetic ordering below a transition temperature T1 < Tf. A single layer granular film (N = 1) with deposition thicknesses tCo=0.7 nm, tPt=1.5 nm and particle diameter of 3 nm is presently studied. SQUID magnetometry shows that a single layer presents the three phases as well. Para-, aspero-and ferromagnetic phases are observed upon lowering the temperature, with transition temperatures Tf ˜ 375 K and T1 ˜ 200 K, respectively. In addition, the PMA persists, proving that there is no interlayer coupling in the multilayer system. SQUID results also reveal a core-shell structure in the CoPt nanoparticles.
000079107 536__ $$9info:eu-repo/grantAgreement/ES/DGA/IMANA-E34$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2014-53921-R
000079107 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000079107 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000079107 700__ $$0(orcid)0000-0002-8498-9383$$aFigueroa, A. I.
000079107 700__ $$0(orcid)0000-0002-6425-024X$$aStankiewicz, J.$$uUniversidad de Zaragoza
000079107 700__ $$0(orcid)0000-0002-0047-1772$$aBartolomé, F.$$uUniversidad de Zaragoza
000079107 700__ $$0(orcid)0000-0003-1165-0087$$aGarcía, L. M.$$uUniversidad de Zaragoza
000079107 700__ $$aCezar, J. C.
000079107 700__ $$aPetroff, F.
000079107 700__ $$aDeranlot, C.
000079107 700__ $$0(orcid)0000-0002-6517-1236$$aBartolomé, J.$$uUniversidad de Zaragoza
000079107 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000079107 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000079107 773__ $$g257 (2017), 60-63$$pDiffus. defect data solid state data, Pt. B Solid state phenom.$$tSOLID STATE PHENOMENA$$x1012-0394
000079107 8564_ $$s558032$$uhttps://zaguan.unizar.es/record/79107/files/texto_completo.pdf$$yPostprint
000079107 8564_ $$s130749$$uhttps://zaguan.unizar.es/record/79107/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000079107 909CO $$ooai:zaguan.unizar.es:79107$$particulos$$pdriver
000079107 951__ $$a2019-05-23-10:02:17
000079107 980__ $$aARTICLE