Bae, S.
, Judy, J.
, Chen, P.
, Egelhoff Jr., W.
and Zum, S.
(2001),
High Thermal Stability of Exchange-Biased Bilayers and Bottom Giant Magnetoresistive Spin Valves Using an α-Fe<sub>2</sub>O<sub>3</sub> Antiferromagnetic Layer, Applied Physics Letters
(Accessed October 18, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
High Thermal Stability of Exchange-Biased Bilayers and Bottom Giant Magnetoresistive Spin Valves Using an α-Fe2O3 Antiferromagnetic Layer
Published
Author(s)
S Bae, J H. Judy, P J. Chen, , S Zum
Abstract
The thermal stability of antiferromagnetic a-Fe2O3 exchange-biased bilayers and bottom giant magnetoresistive (GMR) spin-valve has been investigated experimentally at various ambient temperatures. An a-Fe2O3 exchange biased bilayer exhibited a high blocking temperature, Tb, of 390 degree C, and a bottom spin-valve possessed stable GMR performance above 350 degree C. The Tb of a-Fe2O3 exchange biased bilayers depended strongly on the adjacent ferromagnetic material and the number of measurements. In addition, increasing mean grain size and enhancing (104) and (110) cyrstalline texture of a-Fe2O3 increased Tb by up to 23%.Citation
Applied Physics Letters
Volume
78
Issue
No. 26
Pub Type
Journals
Keywords
giant, iron oxide, magnetoresistance, stability, thermal
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created May 31, 2001, Updated October 12, 2021