| Autor: |
Takata, Keiji |
| Předmět: |
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| Zdroj: |
Journal of Vacuum Science & Technology: Part B-Microelectronics & Nanometer Structures; Mar2009, Vol. 27 Issue 2, p997-1000, 4p, 1 Color Photograph, 1 Black and White Photograph, 2 Diagrams |
| Abstrakt: |
The detection and imaging of magnetic-field-induced strains using scanning probe microscopy enable us to observe magnetic domain structures. A perpendicular recording head in a hard disk drive has been observed in this method in order to investigate distribution of magnetic fields applied to a recording disk. In perpendicular recording, the magnetic field circuit consists of a main pole, a main pole tip, a soft magnetic underlayer (SUL) in the disk and a return pole. The authors formed a magnetic layer on the air bearing surface of the head, and observed the layer subjected to magnetic fields by the write head. The layer plays a role in the SUL and constitutes a part of the magnetic field circuit. The authors imaged the magnetic-field-induced strains in the layer and discussed field distribution in recording media. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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