Magnetic scanning tunneling microscopy: theory and experiment

Edward R. Burke; Romel D. Gomez; Amr A. Adly; Isaak D. Mayergoyz

doi:10.1117/12.146373

4 June 1993 Magnetic scanning tunneling microscopy: theory and experiment

Edward R. Burke, Romel D. Gomez, Amr A. Adly, Isaak D. Mayergoyz

Proceedings Volume 1855, Scanning Probe Microscopies II; (1993) https://doi.org/10.1117/12.146373
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

We have developed magnetic force scanning tunneling microscopy as a powerful tool to analyze magnetic patterns on recording media with sub-micron resolution. The technique employs the interaction of surface magnetic fields with a flexible thin-film magnetic probe. We have made a thorough theoretical analysis of the interaction between the probe and the surface magnetic fields emanating from a typical recorded pattern. Quantitative data about the constituent magnetic fields and the underlying magnetization patterns can then be obtained. We have employed these techniques in studies of two of the most important issues of magnetic recording: data-density and data overwrite. In the course of these studies we have developed new techniques to analyze the magnetic fields of recorded media. These studies are both theoretical and experimental and combined with the use of our magnetic force scanning tunneling microscope should lead to further breakthroughs in the field of magnetic recording.

Citation Download Citation

Edward R. Burke, Romel D. Gomez, Amr A. Adly, and Isaak D. Mayergoyz "Magnetic scanning tunneling microscopy: theory and experiment", Proc. SPIE 1855, Scanning Probe Microscopies II, (4 June 1993); https://doi.org/10.1117/12.146373

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