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  • Eyrich, C. (author)

Effects of substitution on the exchange stiffness and magnetization of Co films

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • 2014
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-239091
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-239091URI
  • https://doi.org/10.1103/PhysRevB.90.235408DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • An antiferromagnetically coupled FM/NM/FM (FM = ferromagnet, NM = normal metal) trilayer structure responds to an external magnetic field by the formation of a magnetic-moment spring within the FM layers. We show that the exchange stiffness (A ex) of an FM layer can be determined by fitting the field-dependent magnetization, M(H), of the FM/NM/FM trilayer to a micromagnetic model. Using this method, we have measured the exchange stiffness of thin-film Co alloyed with Cr, Fe, Ni, Pd, Pt, and Ru. The results show that the rate at which a substituent element reduces the exchange stiffness is not directly related to its effect on the magnetization of the alloy. The observed trends have been understood by material-specific modeling based on density functional theory within the local density approximation. The stiffness measurements are in agreement with Brillouin light scattering carried out on thicker Co films.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Zamani, AtiehUppsala universitet,Materialfysik(Swepub:uu)atiza376 (author)
  • Huttema, W. (author)
  • Arora, M. (author)
  • Harrison, D. (author)
  • Rashidi, F. (author)
  • Broun, D. (author)
  • Heinrich, B. (author)
  • Mryasov, O. (author)
  • Ahlberg, MartinaUppsala universitet,Materialfysik(Swepub:uu)marah227 (author)
  • Karis, OlofUppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)olofkari (author)
  • Jönsson, Petra E.Uppsala universitet,Materialfysik(Swepub:uu)pjo09369 (author)
  • From, M. (author)
  • Zhu, X. (author)
  • Girt, E. (author)
  • Uppsala universitetMaterialfysik (creator_code:org_t)

Related titles

  • In:Physical Review B. Condensed Matter and Materials Physics90:23, s. 235408-1098-01211550-235X

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