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

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• 作者：Aurlien Masseboeuf ; Alain Marty ; Pascale Bayle-Guillemaud ; Christophe Gatel ; Etienne Snoeck
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：August 12, 2009
• 年：2009
• 卷：9
• 期：8
• 页码：2803-2806
• 全文大小：188K
• 年卷期：v.9,no.8(August 12, 2009)
• ISSN：1530-6992

文摘

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.