Competing anisotropies in bcc Fe81Ni19/Co(001) superlattices
2009 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 94, no 7, 073102-073102-3 p.Article in journal (Refereed) Published
Amagnetization reorientation transition has been observed in Fe81Ni19/Co(001) superlattices bymeans of magneto-optical Kerr effect and magnetic force microscopy measurements.The transition is driven by the variation of the interfacedensity. First-principles calculations are combined with a linear stability analysisof the Landau–Lifshitz equation to clarify the mechanism that drivesthe transition. We are able to identify it as beingdriven by competing interface in-plane and uniaxial bulk out-of-plane anisotropies.The origin of the bulk anisotropy is attributed to tetragonaldistortions experimentally observed in these superlattices.
Place, publisher, year, edition, pages
2009. Vol. 94, no 7, 073102-073102-3 p.
Magnetic properties of interfaces, Magnetic anisotropy, Spin waves, Magnetic force microscopy, Magnetooptical effects, Magnetic properties of monolayers and thin films
IdentifiersURN: urn:nbn:se:uu:diva-119893DOI: 10.1063/1.3081107ISI: 000263599200058OAI: oai:DiVA.org:uu-119893DiVA: diva2:301215