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Spin Spring Behavior in Exchange Coupled Soft and High-Coercivity Hard Ferromagnets.

DE2001768586

Publication Date	2000
Personal Author	Shull, R. D.; Shapiro, A. J.; Gornakov, V. S.; Nikitenko, V. I.; Jiang, J. S.
Page Count	6
Abstract	The magnetization reversal processes in an epitaxial Fe/Sm2Co7 structure were investigated using the magneto-optical indicator film technique. The dependence of the magnitude and the orientation of the structure average magnetization have been studied on both cycling and rotating the external magnetic field. (t was discovered that the magnetization reversal of the soft ferromagnet can proceed by formation of not only one-dimensional, but also two-dimensional, exchange spin springs. Experimental data is compared with a theoretical estimation of the rotational hysteresis loop for a spin system containing a one-dimensional exchange spring.
Keywords	Ferromagnets Spin spring Exchange coupled Epitaxial structure High coercivity Behavior Magnetization reversal processes Magneto-optical indicator films
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL. Materials Science Div.; National Inst. of Standards and Technology, Gaithersburg, MD.; Russian Academy of Sciences, Chernogolovka. Inst. of Solid State Physics.
Supplemental Notes	Prepared in cooperation with National Inst. of Standards and Technology, Gaithersburg, MD. and Russian Academy of Sciences, Chernogolovka. Inst. of Solid State Physics.
Document Type	Technical Report
NTIS Issue Number	200122

Spin Spring Behavior in Exchange Coupled Soft and High-Coercivity Hard Ferromagnets.

Spin Spring Behavior in Exchange Coupled Soft and High-Coercivity Hard Ferromagnets.
DE2001768586

Publication Date	2000
Personal Author	Shull, R. D.; Shapiro, A. J.; Gornakov, V. S.; Nikitenko, V. I.; Jiang, J. S.
Page Count	6
Abstract	The magnetization reversal processes in an epitaxial Fe/Sm2Co7 structure were investigated using the magneto-optical indicator film technique. The dependence of the magnitude and the orientation of the structure average magnetization have been studied on both cycling and rotating the external magnetic field. (t was discovered that the magnetization reversal of the soft ferromagnet can proceed by formation of not only one-dimensional, but also two-dimensional, exchange spin springs. Experimental data is compared with a theoretical estimation of the rotational hysteresis loop for a spin system containing a one-dimensional exchange spring.
Keywords	Ferromagnets Spin spring Exchange coupled Epitaxial structure High coercivity Behavior Magnetization reversal processes Magneto-optical indicator films
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL. Materials Science Div.; National Inst. of Standards and Technology, Gaithersburg, MD.; Russian Academy of Sciences, Chernogolovka. Inst. of Solid State Physics.
Supplemental Notes	Prepared in cooperation with National Inst. of Standards and Technology, Gaithersburg, MD. and Russian Academy of Sciences, Chernogolovka. Inst. of Solid State Physics.
Document Type	Technical Report
NTIS Issue Number	200122