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Title: 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:
 [1];  [2]
  1. Hinsdale, IL
  2. Oak Park, IL
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
868309
Patent Number(s):
US 5116693
Assignee:
United States of America as represented by United States (Washington, DC)
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 = {},
url = {https://www.osti.gov/biblio/868309}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

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Works referenced in this record:

Magnetic behaviour of ultra-thin iron overlayers on palladium (111)
journal, September 1982


Magnetic properties of sandwiches and superlattices of fcc Fe(001) grown on Cu(001) substrates
journal, April 1988


Magnetic properties of novel epitaxial films (invited)
journal, April 1987


Magnetism of Epitaxial fcc Iron Films on Cu(001) Investigated by Spin-Polarized Photoelectron Emission
journal, May 1987


Magneto-optical studies of metastable 3d-transition metal films
journal, January 1990


Direct Evidence for Perpendicular Spin Orientations and Enhanced Hyperfine Fields in Ultrathin Fe(100) Films on Ag(100)
journal, November 1987


Epitaxy of Mn On Pd {001}
journal, April 1989


Electronic structure of Fe, Co, and Ni impurities in Pd
journal, November 1988


Magnetometry of the ferromagnetic monolayer Fe(110) on W(110) coated with Ag
journal, July 1989


Perpendicular surface magnetic anisotropy in ultrathin epitaxial Fe films
journal, May 1990


Polar Kerr-Effect Observation of Perpendicular Surface Anisotropy for Ultrathin fcc Fe Grown on Cu(100)
journal, June 1988


Two‐dimensional magnetic phase transition of ultrathin iron films on Pd(100)
journal, May 1990