Dual FGL and Dual SPL Spintronic Device To Reduce Perpendicular Field At Writing Location
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United States of America
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Mar 13, 2025
app pub date -
Nov 26, 2024
filing date -
Nov 26, 2024
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Abstract
The present disclosure is generally related to a magnetic recording device comprising a magnetic recording head. The magnetic recording head comprises a main pole, a shield, and a spintronic device disposed between the main pole and the shield. The spintronic device comprises two field generation layers (FGLs), two spin polarization layers (SPLs), and two spin kill layers. The spintronic device further comprises one or more optional thin negative beta material layers, such as layers comprising FeCr, disposed in contact with at least one of the spin kill layers. When electric current is applied, the spin kill layers and optional negative beta material layers eliminate or reduce any spin torque between the FGLs and the SPLs.
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