Article ID Journal Published Year Pages File Type
9834551 Journal of Magnetism and Magnetic Materials 2005 6 Pages PDF
Abstract
We measured the main pole field using electron beam tomography to analyze the GHz response of a single-pole-type (SPT) write head. The response of the head to a current was measured up to 1.3 GHz using a head without a recording medium. The magnetic field profiles around the main pole were obtained with 25-nm spacing from the head surface. The head response followed the current switching with a rise time of 0.3 ns, and the frequency response performance did not show any critical degradation up to 1.3 GHz. There was no difference in the head responses between the SPT head and a longitudinal recording head.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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