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Title: Zinc enhanced hard disk media

Abstract

The present invention provides a magnetic recording media incorporating Zn containing layers in close proximity to a magnetic layer to provide media having increased coercivity and lower noise. The Zn containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, underlayer structures to promote epitaxial crystalline structure in the magnetic layer, and a Zn containing layer to promote isolation between the magnetic grains. The medium can further include seed layers, underlayers, intermediate layers, and overlayers. The process of manufacture includes promoting diffusion of Zn to the magnetic layer grain boundaries.

Inventors:
 [1];  [1];  [1]
  1. Pittsburgh, PA
Issue Date:
Research Org.:
Carnegie Mellon University (Pittsburgh, PA)
OSTI Identifier:
874648
Patent Number(s):
6432563
Application Number:
09/541,245
Assignee:
Carnegie Mellon University (Pittsburgh, PA)
Patent Classifications (CPCs):
G - PHYSICS G11 - INFORMATION STORAGE G11B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
FG02-90ER45423
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
zinc; enhanced; hard; disk; media; provides; magnetic; recording; incorporating; zn; containing; layers; close; proximity; layer; provide; increased; coercivity; noise; incorporated; rotating; translating; stationary; operate; conjunction; transducing; heads; reading; data; applications; medium; alloy; film; underlayer; structures; promote; epitaxial; crystalline; structure; isolation; grains; seed; underlayers; intermediate; overlayers; process; manufacture; promoting; diffusion; grain; boundaries; crystalline structure; magnetic recording; recording media; magnetic layer; /428/

Citation Formats

Zou, Jie, Lambeth, David N, and Laughlin, David E. Zinc enhanced hard disk media. United States: N. p., 2002. Web.
Zou, Jie, Lambeth, David N, & Laughlin, David E. Zinc enhanced hard disk media. United States.
Zou, Jie, Lambeth, David N, and Laughlin, David E. Tue . "Zinc enhanced hard disk media". United States. https://www.osti.gov/servlets/purl/874648.
@article{osti_874648,
title = {Zinc enhanced hard disk media},
author = {Zou, Jie and Lambeth, David N and Laughlin, David E},
abstractNote = {The present invention provides a magnetic recording media incorporating Zn containing layers in close proximity to a magnetic layer to provide media having increased coercivity and lower noise. The Zn containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, underlayer structures to promote epitaxial crystalline structure in the magnetic layer, and a Zn containing layer to promote isolation between the magnetic grains. The medium can further include seed layers, underlayers, intermediate layers, and overlayers. The process of manufacture includes promoting diffusion of Zn to the magnetic layer grain boundaries.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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