NDLI: Coupling effects between films of Fe and EuO

Content Provider	IEEE Xplore Digital Library
Author	Kie Ahn Almasi, G.
Copyright Year	1965
Abstract	Coupling effects between ferromagnetic films of EuO and Fe in direct contact were studied in the temperature range 6 to 300°K by magnetooptic means. Thin Fe film (435 Å) was vacuum evaporated onto heated glass substrates, followed by EuO films with several steps of thickness (350-1400 Å). A strong anti-parallel coupling is found. When the samples are cooled from room temperature to 10°K with the Fe film saturated, the two magnetizations are found to be 180° apart. If the magnetizations are forced to be parallel by an external field, then subsequent switching occurs by coupled rotation in opposite senses; that is, the magnetization components along the driving field are parallel and the transverse components are antiparallel. The details of the composite hysteresis loops can be explained in terms of the effective field acting within each film due to the coupling. Because of the coupling, the switching field of the composite film can be reduced to 25 Oe, which is much lower than either film alone.
Sponsorship	IEEE Magnetics Society
Starting Page	944
Ending Page	949
Page Count	6
File Size	909082
File Format	PDF
ISSN	00189464
Volume Number	5
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1969-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iron Saturation magnetization Couplings Temperature distribution Magnetooptic effects Glass Substrates Temperature sensors Magnetic switching Hysteresis
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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