NDLI: Coherent Rotation and Effective Anisotropy

Content Provider	IEEE Xplore Digital Library
Author	Zhao, G.P. Wang, X.L. Feng, Y.P. Huang, C.W.
Copyright Year	1965
Abstract	It is shown in this paper that the concept of effective anisotropy is of sound physical sense only when the nucleation mode is coherent rotation. Comparison of coherent and incoherent nucleation fields demonstrates that the coherent rotation can take place at very small defect size. The critical size below which the coherent rotation is favorable is roughly the domain wall-width with 3-D soft defects and is smaller for oriented exchange-coupled permanent magnets with planar soft defects. The effect of misaligned grains has also been considered and it is illustrated that the effective anisotropy has to be used very carefully: it can only be used in limited cases and its expression varies as the microstructures change
Sponsorship	IEEE Magnetics Society
Starting Page	2908
Ending Page	2910
Page Count	3
File Size	121505
File Format	PDF
ISSN	00189464
Volume Number	43
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Anisotropic magnetoresistance Coercive force Saturation magnetization Physics Superconducting magnets Superconducting materials Magnetic anisotropy Perpendicular magnetic anisotropy Micromagnetics Magnetic materials nucleation modes Coherent rotation effective anisotropy
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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