Heat assisted magnetic recording film including...

Dynamic magnetic information storage or retrieval – Record medium

Reexamination Certificate

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C977S778000, C360S135000

Reexamination Certificate

active

10745205

ABSTRACT:
Heat assisted magnetic recording systems with composite recording films are disclosed. The magnetic recording films include superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix. The matrix provides antiferromagnetic coupling with the superparamagnetic nanoparticles, and minimizes exchange interactions between adjacent nanoparticles.

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