NDLI: The Loop-Stage-Dependent Exchange Bias Training Effect in FeNi/FeMn Bilayers

Content Provider	IEEE Xplore Digital Library
Author	Yang, M. Zhang, X.H. Zhao, J.G. You, B. Xu, Y.B. Du, J.
Copyright Year	1965
Abstract	The loop-stage-dependent exchange bias training effect has been systematically studied in the polycrystalline FeNi/FeMn bilayers. According to the ferromagnet (FM) magnetization states, an entire magnetic hysteresis loop can be divided into four different stages: 1) positive saturation stage; 2) descending branch; 3) negative saturation stage; and 4) ascending branch. The loop-stage-dependent training effect was studied by probing the instant variation of the exchange field and the coercivity after adding a short waiting time At on a specific loop-stage. Our experimental results unambiguously show that this training effect strongly depends on the stage that the waiting time is assigned on and the quantity of At as well. Based on the macroscopic two-level relaxation model, these phenomena can be well explained by considering different switching probabilities of the interfacial uncompensated antiferromagnetic spins during different FM magnetization reversal processes.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	641258
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Training Frequency modulation Magnetization Magnetization reversal Temperature measurement Switches Couplings Loop-stage dependent Exchange bias Training effect training effect Exchange bias (EB) loop-stage-dependent
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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