HEAT-ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE

HEAT-ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE

PROBLEM TO BE SOLVED: To achieve a heat-assisted recording medium which is segmented by the uniform grain boundary width and has a magnetic layer comprising magnetic crystal grains grown with column, and to provide a magnetic storage device having a low error rate using the heat-assisted recording m...

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Hauptverfasser: KANBE TETSUYA, NIWA KAZUYA
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
MAGNETS
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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creator KANBE TETSUYA
NIWA KAZUYA
description PROBLEM TO BE SOLVED: To achieve a heat-assisted recording medium which is segmented by the uniform grain boundary width and has a magnetic layer comprising magnetic crystal grains grown with column, and to provide a magnetic storage device having a low error rate using the heat-assisted recording medium.SOLUTION: A magnetic recording medium comprises a substrate, a plurality of foundation layers formed on the substrate, and a magnetic layer containing an alloy having an L1structure as a main component. The magnetic layer has a two-layer structure constituted of a first magnetic layer comprising an FePt alloy having an L1structure and C, and a second magnetic layer comprising an FePt alloy having an L1structure, and CrO, YOor TaO. Moreover, a non-magnetic intermediate layer for controlling exchange coupling is provided between the first magnetic layer and the second magnetic layer.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
MAGNETS
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
title HEAT-ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE
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