Journal of Materials Science

, Volume 26, Issue 7, pp 1705–1728 | Cite as

Fabrication and characterization of thin films with perpendicular magnetic anisotropy for high-density magnetic recording

Part I A review
  • C. W. Chen
Review

Abstract

Perpendicular magnetic anisotropy (PMA) was first observed in thin films of cobalt-chromium alloys in 1974, and perpendicular magnetic recording was proposed in 1977. After less than ten years, a new technology for high-density magnetic recording is firmly established. This breakthrough of the science and technology of magnetic recording has been made possible mainly through the ingenuity and concerted efforts of researchers. The preparation, characterization, and application of the Co-Cr films featuring PMA have been extensively studied. This paper reviews the large number of reports on PMA films with emphasis on three areas: 1. processing of PMA films; 2. correlation of magnetic properties and microstructures of PMA films; and 3. state-of-art techniques for fabricating PMA films.

Keywords

Polymer Microstructure Thin Film Anisotropy Magnetic Property 

Nomenclature

PMA

Perpendicular magnetic anisotropy

PMR

Perpendicular magnetic recording

B

Magnetic induction

H

Magnetic field

Hc

Coercivity

Hc,⊥

Perpendicular coercivity

Hd

Demagnetizing field

Hk

Anisotropy field

H

Perpendicular anisotropy constant

Mr

Remanent magnetization

Ms

Saturation magnetization

PAr

Argon pressure

Ts

Substrate temperature

Vb

Substrate bias voltage

α

Incidence angle

δθ50

Half-width dispersion angle in the rocking curve

θc

Curie temperature

σ0

Internal stress

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Copyright information

© Chapman and Hall Ltd 1991

Authors and Affiliations

  • C. W. Chen
    • 1
  1. 1.Chemistry and Materials Science Department, Lawrence Livermore National LaboratoryUniversity of CaliforniaLivermoreUSA

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