Perpendicular magnetocrystalline anisotropy in tetragonally distorted Fe-Co alloys
2006 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 96, no 3Article in journal (Refereed) Published
We report on the experimental realization of tetragonal Fe-Co alloys as a constituent of Fe0.36Co0.64/Pt superlattices with huge perpendicular magnetocrystalline anisotropy energy, reaching 210µeV/atom, and a saturation magnetization of 2.5µB/atom at 40 K, in qualitative agreement with theoretical predictions. At room temperature the corresponding values 150µeV/atom and 2.2µB/atom are achieved. This suggests that Fe-Co alloys with carefully chosen combinations of composition and distortion are good candidates for high-density perpendicular storage materials. © 2006 The American Physical Society.
Place, publisher, year, edition, pages
2006. Vol. 96, no 3
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-50310DOI: 10.1103/PhysRevLett.96.037205OAI: oai:DiVA.org:liu-50310DiVA: diva2:271206