Method and manufacture process for exchange decoupled first magnetic layer

Method and manufacture process for exchange decoupled first magnetic layer

A perpendicular magnetic recording medium having a dual-layer magnetic film is disclosed. The bottom layer is completely exchange decoupled, and the top layer contains a certain amount of exchange coupling optimized for recording performance. Preferably, the bottom magnetic layer contains stable oxi...

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Hauptverfasser: WU ZHONG STELLA, HARKNESS, IV SAMUEL DACKE, LIU CONNIE CHUNLING, MUNTEANU MARIANA R, CHEN QIXU
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator WU ZHONG STELLA
HARKNESS, IV SAMUEL DACKE
LIU CONNIE CHUNLING
MUNTEANU MARIANA R
CHEN QIXU
description A perpendicular magnetic recording medium having a dual-layer magnetic film is disclosed. The bottom layer is completely exchange decoupled, and the top layer contains a certain amount of exchange coupling optimized for recording performance. Preferably, the bottom magnetic layer contains stable oxide material (for example, TiO2) and other non-magnetic elements (for example, Cr). A method of manufacturing the media is also disclosed.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Method and manufacture process for exchange decoupled first magnetic layer
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