Mechanism of tailored magnetic anisotropy in amorphous Co68Fe24Zr8 thin films
2014 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 104, no 7, 072409- p.Article in journal (Refereed) Published
The mechanism of tailored magnetic anisotropy in amorphous Co68Fe24Zr8 thin films was investigated by ferromagnetic resonance (FMR) on samples deposited without an applied magnetic field, with an out-of-plane field and an in-plane field. Analysis of FMR spectra profiles, high frequency susceptibility calculations, and statistical simulations using a distribution of local uniaxial magnetic anisotropy reveal the presence of atomic configurations with local uniaxial anisotropy, of which the direction can be tailored while the magnitude remains at an intrinsically constant value of 3.0(2) kJ/m(3). The in-plane growth field remarkably sharpens the anisotropy distribution and increases the sample homogeneity. The results benefit designing multilayer spintronic devices based on highly homogeneous amorphous layers with tailored magnetic anisotropy.
Place, publisher, year, edition, pages
2014. Vol. 104, no 7, 072409- p.
IdentifiersURN: urn:nbn:se:uu:diva-222170DOI: 10.1063/1.4865369ISI: 000332038500039OAI: oai:DiVA.org:uu-222170DiVA: diva2:711509