Observation of nearly intrinsic ferromagnetic resonance linewidth in BaFe 12O 19 films deposited by pulsed laser deposition

L. V. Saraf, S. E. Lofland, Arthur Von Cresce, A. P. Monga, S. M. Bhagat, R. Ramesh

Research output: Contribution to journalConference article

3 Scopus citations

Abstract

We report magnetic resonance results on (0.3-8 μm) films of c-axis oriented barium ferrite grown by pulsed laser deposition on sapphire substrates. By optimizing the growth and annealing parameters, we have observed numerous (up to 25) spin wave resonance modes as well as nearly intrinsic ferromagnetic resonance linewidth of 23 Oe at 58 GHz, when the applied field is parallel to the c axis. On rotation of the field away from the film normal, the linewidth increases rapidly. This is taken in to account by using a small (0.3°) spread in the film orientation combined with the conventional formula for shape anisotropy. Atomic force microscopy surface roughness measurements support these considerations.

Original languageEnglish (US)
Pages (from-to)2377-2379
Number of pages3
JournalIEEE Transactions on Magnetics
Volume37
Issue number4 I
DOIs
StatePublished - Jul 1 2001
Event8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States
Duration: Jan 7 2001Jan 11 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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