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Perpendicular magnetic anisotropy in Co–Pt granular multilayers

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dc.contributor.author Bartolomé, J.
dc.contributor.author Figueroa, A.I.
dc.contributor.author García, L.M.
dc.contributor.author Bartolomé, F.
dc.contributor.author Ruiz, L.
dc.contributor.author González-Calbet, J.M.
dc.contributor.author Petroff, F.
dc.contributor.author Deranlot, C.
dc.contributor.author Wilhelm, F.
dc.contributor.author Rogalev, A.
dc.contributor.author Brookes, N.
dc.date.accessioned 2017-05-25T17:02:13Z
dc.date.available 2017-05-25T17:02:13Z
dc.date.issued 2012
dc.identifier.citation Perpendicular magnetic anisotropy in Co–Pt granular multilayers / J. Bartolomé, A.I. Figueroa, L.M. García, F. Bartolomé, L. Ruiz, J.M. González-Calbet, F. Petroff, C. Deranlot, F. Wilhelm, A. Rogalev, N. Brookes // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1053-1057. — Бібліогр.: 15 назв. — англ. uk_UA
dc.identifier.issn 0132-6414
dc.identifier.other PACS: 75.30.–m, 75.70.–i
dc.identifier.uri http://dspace.nbuv.gov.ua/handle/123456789/117613
dc.description.abstract Magnetization hysteresis curves have been measured on Co granular multilayers, (Al₂O₃/Co/Pt)N (N = 1 and 25), with the applied magnetic field parallel and perpendicular to the substrate plane. In all samples perpendicular magnetic anisotropy was observed. For Co particles with average diameter 3 nm, the coercive field at low temperature is μ₀HC = 0.5 T. HC decreases for increasing temperature and disappears at ≈200 K. A soft magnetic component is also present in all samples up to the freezing temperature Tf = 365 K. Co and Pt XMCD measurements at the L2,3 edges were performed, yielding to the orbital mL and spin mS contributions to the total magnetic moment of the system. These results, in addition to XANES ones, indicate the presence of CoxPt₁₋x alloy. Particles conformed of CoPt alloy, embedded in Pt and coupled magnetically by dipolar or RKKY interaction, may explain the phenomenology observed in these systems. uk_UA
dc.description.sponsorship This work was supported by the MECOM under Grant MAT11/23791 and Project IMANA from the DGA, in Spain. A.I.F. acknowledges a CSIC JAE2008-Predoc grant. The experiment HE3136 at the ESRF is acknowledged. uk_UA
dc.language.iso en uk_UA
dc.publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України uk_UA
dc.relation.ispartof Физика низких температур
dc.subject К 80-летию Виктора Валентиновича Еременко uk_UA
dc.title Perpendicular magnetic anisotropy in Co–Pt granular multilayers uk_UA
dc.type Article uk_UA
dc.status published earlier uk_UA

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