Switching a magnetic vortex by interlayer coupling in epitaxially grown Co/Cu/Py/Cu(001) trilayer disks [electronic resource].
- Berkeley, Calif. : Lawrence Berkeley National Laboratory. Advanced Light Source, 2010. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 342,001 : digital, PDF file
- Additional Creators:
- Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory. Advanced Light Source, and United States. Department of Energy. Office of Scientific and Technical Information
- Epitaxial Py/Cu/Co/Cu(001) trilayers were patterned into micron sized disks and imaged using element-specific photoemission electron microscopy. By varying the Cu spacer layer thickness, we study how the coupling between the two magnetic layers influences the formation of magnetic vortex states. We find that while the Py and Co disks form magnetic vortex domains when the interlayer coupling is ferromagnetic, the magnetic vortex domains of the Py and Co disks break into anti-parallel aligned multidomains when the interlayer coupling is antiferromagnetic. We explain this result in terms of magnetic flux closure between the Py and Co layers for the antiferromagnetic coupling case.
- Published through SciTech Connect., 07/16/2010., "lbnl-3934e", JOURNAL OF PHYSICS: CONDENSED MATTER 22 34 ISSN 0953-8984; ISSN 1361-648X FT, Park, J. S.; Arenholz, E.; Wu, J.; Carlton, D.; Oelker, E.; Jin, E.; Scholl, A.; Hwang, C.; Bokor, J.; Qiu, Z Q., and Materials Sciences Division
- Funding Information:
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