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

Abstract

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.

Inventors:
;
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5129378
Patent Number(s):
PATENTS-US-A7526915
Application Number:
ON: DE92017177; PPN: US 7-526915
Assignee:
Dept. of Energy
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent Application
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; 36 MATERIALS SCIENCE; IRON; MAGNETIC PROPERTIES; MAGNETIC STORAGE DEVICES; MATERIALS; PALLADIUM; LAYERS; MAGNETO-OPTICAL EFFECTS; OPTICAL PROPERTIES; SUBSTRATES; THIN FILMS; ELEMENTS; FILMS; MEMORY DEVICES; METALS; PHYSICAL PROPERTIES; PLATINUM METALS; TRANSITION ELEMENTS; 990200* - Mathematics & Computers; 360104 - Metals & Alloys- Physical Properties

Citation Formats

Liu, Chian Q, and Bader, S D. A unique system of Fe/Pd for magneto-optical recording and magnetic switching devices. United States: N. p., 1990. Web.
Liu, Chian Q, & Bader, S D. A unique system of Fe/Pd for magneto-optical recording and magnetic switching devices. United States.
Liu, Chian Q, and Bader, S D. Tue . "A unique system of Fe/Pd for magneto-optical recording and magnetic switching devices". United States. https://www.osti.gov/servlets/purl/5129378.
@article{osti_5129378,
title = {A unique system of Fe/Pd for magneto-optical recording and magnetic switching devices},
author = {Liu, Chian Q and Bader, S D},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {5}
}

Patent Application:

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