Influence of annealing on Co/Au multilayers: A structural and magnetic study

G. Gubbiotti, G. Carlotti, F. Albertini, F. Casoli, E. Bontempi, L. E. Depero, H. Koo, R. D. Gomez

Research output: Contribution to journalConference articlepeer-review

19 Citations (Scopus)


The effect of annealing treatments (at T=250 °C) on both the structural and magnetic properties of sputtered (Co(dCo)/Au(22 Å))×30 multilayers with dCo=6, 9 and 12 Å was studied. X-ray reflectivity and high angle diffraction measurements allowed us to estimate bilayer thickness and interface quality of the multilayers. Magnetic characterization, performed by alternating gradient force magnetometry, magnetic force microscopy and Brillouin light scattering from spin waves, indicates that all the as-prepared samples display perpendicular anisotropy. Upon annealing the perpendicular anisotropy for dCo=9 and 12 Å multilayers is enhanced while it is weakened for dCo=6 Å.

Original languageEnglish
Pages (from-to)102-106
Number of pages5
JournalThin Solid Films
Issue number1-2
Publication statusPublished - 2003 Mar 20
EventProceedings of Symposium J on Growth and Evolution - Strasbourg, France
Duration: 2002 Jun 182002 Jun 21


  • Annealing
  • Magnetic force microscopy
  • Magnetic multilayers
  • Perpendicular magnetic anisotropy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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