Dual FGL and dual SPL spintronic device to reduce perpendicular field at writing location

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12190919
APP PUB NO 20240144962A1
SERIAL NO

18226109

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Abstract

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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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Patent Owner(s)

  • WESTERN DIGITAL TECHNOLOGIES, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asif, Bashir Muhammad San Jose, US 40 123
Bai, Zhigang Fremont, US 176 5619
Ding, Yunfei Fremont, US 42 919
Goncharov, Alexander Morgan Hill, US 56 307
Shiimoto, Masato Fujisawa, JP 59 1232

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