Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1990-05-22
1992-05-26
Cashion, Jr., Herrell C.
Stock material or miscellaneous articles
Composite
Of inorganic material
428676, 428900, 427128, 427295, 369 13, G11B 570
Patent
active
051166933
ABSTRACT:
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.
REFERENCES:
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Tian, D. et al. "Epitoxy of Mn on Pd (001)," Solid State Comm., vol. 70 pp. 199-204 (1989).
Binns et al. "Magnetic Behavior of Ultra-Thin Iron Overlayers on Palladium (111)"; Solid State Comm. vol. 43 (1982) pp. 853-855.
Koon, N. C. et al. "Direct Evidence for Perpendicular Spin Orientations and Enhanced Hyperfine Fields in Ultrathin Fe(100) Films on Ag(100)", Physical Rev. Lett vol. 59 (1987) pp. 2463-2466.
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Phys. Rev. Lett 60, 2422, Jun. 6, 1988.
Bader Samuel D.
Liu Chian Q.
Albrecht John M.
Cashion, Jr. Herrell C.
Follett Robert J.
Moser William R.
Smith Bradley W.
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