Quantitative Observation of Magnetic Flux Distribution in New Magnetic Films for Future High Density Recording Media

Details Quantitative Observation of Magnetic Flux Distribution in New Magnetic Films for Future High Density Recording Media Quantitative Observation of Magnetic Flux Distribution in New Magnetic Films for Future High Density Recording Media

2009-08-21

arxiv.org/abs/0908.3153v1

Nano Lett. 9:2803-2806, 2009

Physics

Condensed Matter

Materials Science

Scientific paper

10.1021/nl900800q

Off-axis electron holography was used to observe and quantify the magnetic microstructure of a perpendicular magnetic anisotropic (PMA) recording media. Thin foils of PMA materials exhibit an interesting up and down domain configuration. These domains are found to be very stable and were observed at the same time with their stray field, closing magnetic flux in the vacuum. The magnetic moment can thus be determined locally in a volume as small as few tens of cubic nanometers.

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