A unique system of Fe/Pd for magneto-optical recording and magnetic switching devices

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Description

This invention is comprised of a high density magneto-optical information storage medium utilizing the properties of an ultrathin iron film on a palladium substrate. The present invention comprises a magneto-optical medium capable of thermal and magnetic stability and capable of possessing a vertical orientation of the magnetization vector for the magnetic material. Data storage relies on the temperature dependence of the coercivity of the ultrathin film. Data retrieval derives from the Kerr effect which describes the direction of rotation of a plane of polarized light traversing the ultrathin magnetic material as a function of the orientation of the magnetization vector.

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16 p.

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Liu, Chian Q. & Bader, S. D. May 22, 1990.

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Description

This invention is comprised of a high density magneto-optical information storage medium utilizing the properties of an ultrathin iron film on a palladium substrate. The present invention comprises a magneto-optical medium capable of thermal and magnetic stability and capable of possessing a vertical orientation of the magnetization vector for the magnetic material. Data storage relies on the temperature dependence of the coercivity of the ultrathin film. Data retrieval derives from the Kerr effect which describes the direction of rotation of a plane of polarized light traversing the ultrathin magnetic material as a function of the orientation of the magnetization vector.

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16 p.

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OSTI; NTIS; GPO Dep.

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  • Other Information: PBD: 22 May 1990

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  • Other: DE92017177
  • Report No.: PATENTS-US--A7526915
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10156891
  • Archival Resource Key: ark:/67531/metadc1315090

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Office of Scientific & Technical Information Technical Reports

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  • May 22, 1990

Added to The UNT Digital Library

  • Nov. 3, 2018, 11:47 a.m.

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  • March 12, 2019, 1:12 p.m.

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Liu, Chian Q. & Bader, S. D. A unique system of Fe/Pd for magneto-optical recording and magnetic switching devices, patent, May 22, 1990; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1315090/: accessed June 7, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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