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Author Bae, Seongtae ♦ Judy, Jack H. ♦ Chen, P. J. ♦ Egelhoff, William F. ♦ Zurn, Shayne
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ AMBIENT TEMPERATURE ♦ FERROMAGNETIC MATERIALS ♦ GRAIN SIZE ♦ PERFORMANCE ♦ PHYSICS ♦ SPIN ♦ STABILITY ♦ TEXTURE ♦ VALVES
Abstract The thermal stability of antiferromagnetic {alpha}-Fe{sub 2}O{sub 3} exchange-biased bilayers and bottom giant magnetoresistive (GMR) spin valves has been investigated experimentally at various ambient temperatures. An {alpha}-Fe{sub 2}O{sub 3} exchange-biased bilayer exhibited a high blocking temperature, T{sub b}, of 390{degree}C, and a bottom spin valve showed stable GMR performance above 350{degree}C. The T{sub b} of {alpha}-Fe{sub 2}O{sub 3} exchange-biased bilayers depended strongly on the adjacent ferromagnetic material and the number of measurements. In addition, the increasing mean grain size and enhanced (104) and (110) crystalline texture of {alpha}-Fe{sub 2}O{sub 3} increased T{sub b} by up to 23%. {copyright} 2001 American Institute of Physics.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-06-25
Publisher Place United States
Journal Applied Physics Letters
Volume Number 78
Issue Number 26


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