Unique system of FE/PD for magneto-optical recording and magnetic switching devices
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.
- Inventors:
-
- Hinsdale, IL
- Oak Park, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 868309
- Patent Number(s):
- 5116693
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- unique; pd; magneto-optical; recording; magnetic; switching; devices; density; information; storage; medium; utilizing; properties; ultrathin; iron; film; palladium; substrate; comprises; capable; thermal; stability; possessing; vertical; orientation; magnetization; vector; material; data; relies; temperature; dependence; coercivity; retrieval; derives; kerr; effect; describes; direction; rotation; plane; polarized; light; traversing; function; medium capable; data storage; switching devices; magnetic switch; polarized light; magnetic material; storage medium; information storage; optical information; switching device; optical medium; temperature dependence; vertical orientation; optical recording; ultrathin film; /428/369/427/
Citation Formats
Liu, Chian Q, and Bader, Samuel D. Unique system of FE/PD for magneto-optical recording and magnetic switching devices. United States: N. p., 1992.
Web.
Liu, Chian Q, & Bader, Samuel D. Unique system of FE/PD for magneto-optical recording and magnetic switching devices. United States.
Liu, Chian Q, and Bader, Samuel D. Wed .
"Unique system of FE/PD for magneto-optical recording and magnetic switching devices". United States. https://www.osti.gov/servlets/purl/868309.
@article{osti_868309,
title = {Unique system of FE/PD for magneto-optical recording and magnetic switching devices},
author = {Liu, Chian Q and Bader, Samuel D},
abstractNote = {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 = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}
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