Effect of the deposition field on the magnetic properties of epitaxial Fe$_{3}$O$_{4}$ thin films

ORAL

Abstract

50nm epitaxial Fe$_{3}$O$_{4}$ thin films grown on MgO (100) substrates have been investigated by ferromagnetic resonance. The in-plane magnetic properties are greatly influenced by the magnetic field applied during film deposition, which (1) decreases the effective magnetization, (2) introduces the uniaxial anisotropy along the field direction, (3) rotates the in-plane easy axis from [001] to [011], (4) increases the homogeneity dramatically, (5) decreases the magnetic saturation field (lower than 2KOe). These behaviors associated with crystalline structure and strain, as well as variation with temperature, will be described in detail. This work is supported by US Dept. of Energy at MU and NSF at USF.

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Authors

  • J. Dou

    • Department of Physics, Miami University
    • Department of Physics, Miami University of Ohio

  • M. Pechan

    • Department of Physics, Miami University
    • Department of Physics, Miami University of Ohio

  • Priyanga Jayathilaka

    • Department of Physics, University of South Florida

  • Daryl Williams

    • Department of Physics, University of South Florida

  • Chris Bauer

    • Department of Physics, University of South Florida

  • Casey Miller

    • University of South Florida
    • Department of Physics, University of South Florida