Ferromagnetic resonance imaging of Co films using magnetic resonance force microscopy
- Condensed Matter and Thermal Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Condensed Matter Physics, California Institute of Technology, Pasadena, California 91125 (United States)
- University of Florida, Gainesville, Florida 32611 (United States)
Lateral one-dimensional imaging of cobalt (Co) films by means of microscopic ferromagnetic resonance (FMR) detected using the magnetic resonance force microscope (MRFM) is demonstrated. A novel approach involving scanning a localized magnetic probe is shown to enable FMR imaging in spite of the broad resonance linewidth. We introduce a spatially selective local field by means of a small, magnetically polarized spherical crystallite of yttrium iron garnet (YIG). Using MRFM-detected FMR signals from a sample consisting of two Co films, we can resolve the {approximately}20 {mu}m lateral separation between the films. The results can be qualitatively understood by consideration of the calculated spatial profiles of the magnetic field generated by the YIG sphere. {copyright} {ital 1998 American Vacuum Society.}
- OSTI ID:
- 639168
- Report Number(s):
- CONF-980107-; ISSN 0734-211X; TRN: 9815M0034
- Journal Information:
- Journal of Vacuum Science and Technology. B, Microelectronics Processing and Phenomena, Vol. 16, Issue 4; Conference: 25. conference on the physics and chemistry of semiconductor interfaces, Salt Lake City, UT (United States), 18-22 Jan 1998; Other Information: PBD: Jul 1998
- Country of Publication:
- United States
- Language:
- English
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