COMPOSITE PERPENDICULAR MEDIA WITH GRADED ANISOTROPY LAYERS AND EXCHANGE BREAK LAYERS

COMPOSITE PERPENDICULAR MEDIA WITH GRADED ANISOTROPY LAYERS AND EXCHANGE BREAK LAYERS

A perpendicular magnetic recording layer may include a hard granular layer, an exchange break layer formed on the hard granular layer, and a soft granular layer formed on the exchange break layer. In some embodiments, the exchange break layer may consist essentially of ruthenium. In some embodiments...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG CHUN, VALCU BOGDAN FLORIN, WANG SHOUTAO, LIU CONNIE CHUNLING, CHOUR KUEIR-WEEI, CHEN QIXU
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A perpendicular magnetic recording layer may include a hard granular layer, an exchange break layer formed on the hard granular layer, and a soft granular layer formed on the exchange break layer. In some embodiments, the exchange break layer may consist essentially of ruthenium. In some embodiments, the perpendicular magnetic recording layer may include n magnetic layers and n−1 exchange break layers, where n is greater than or equal to three, and where the n−1 exchange break layers alternate with the n magnetic layers in the magnetic recording layer.