Magnetic Domain Properties of Co/Pt Multilayer Thin Films

ORAL

Abstract

The magnetic domain patterns that form on Co/Pt multilayer thin films display perpendicular anisotropy and produce a mix of stripe and bubble domains. The morphology of such domains is of interest for high-density magnetic data storage. We studied how the domain morphology changes throughout the magnetization process, for different thicknesses of Co and different numbers of layer repeats. We use magnetic force microscopy (MFM) to investigate the domain morphology while applying a magnetic field in situ. We completed these studies for layer repeats of N$=$20, 18 and Co/Pt thicknesses of 10 {\AA} / 7 {\AA}. We find that an applied field has a significant effect on the morphology of the domains and consequently on their density. These studies are useful for data storage applications and characterizes effects of applied fields on these films.

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Authors

  • Michael Vaka

    Brigham Young University

  • John Ray

    Brigham Young University

  • Rupjyoti Gogoi

    Arizona State University, Colorado State University, University of Utah, Utah State University, George Mason University, Brigham Young University, University of Colorado, Boulder, Georgia Institute of Technology, University of Colorado, Boulder; North China Electric Power University, Argonne National Laboratory, Carnegie Mellon University, Purdue University, Yunnan University, University of Arizona, Ball Aerospace, Ponderosa Associates Limited, Polsinelli PC, Saleh Research Centre, New Mexico State University, Oak Ridge National Laboratory, Center for Memory and Recording research, Advanced Photon Source, Chemnitz university of technology, Tezpur University

  • Karine Chesnel

    Brigham Young University