Spin-Orbit Torque Assisted Magnetic Write Head Structure For Perpendicular Magnetic Recording
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United States of America
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Apr 3, 2025
app pub date -
Sep 29, 2023
filing date -
Sep 29, 2023
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Abstract
The present embodiments relate to a PMR write-head structure where the spin-orbit torque (SOT) material is in contact with the main pole in the write gap (WG). In addition, with the write shield (WS) electrically isolated from the side shield (SS) in the present designs, the current can be confined in the SOT material near the main pole, and the device resistance can remain within a reasonable range. It can be shown, using simulations, that the main pole switching rise time can be improved by 18˜24% using spin-orbit torque from heavy metals like platinum.
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