Spin spring behavior in exchange coupled soft and high-coercivity hard ferromagnets.

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The magnetization reversal processes in an epitaxial Fe/Sm{sub 2}Co{sub 7} 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. It 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.

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6 p.

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Shull, R. D.; Shapiro, A. J.; Gornakov, V. S.; Nikitenko, V. I.; Jiang, J. S.; Kaper, H. et al. November 1, 2000.

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Description

The magnetization reversal processes in an epitaxial Fe/Sm{sub 2}Co{sub 7} 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. It 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.

Physical Description

6 p.

Notes

OSTI as DE00768586

Medium: P; Size: 6 pages

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  • 8th Joint Magnetism and Magnetic Materials - INTERMAG Conference, San Antonio, TX (US), 01/07/2001--01/11/2001

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  • Report No.: ANL/MSD/CP-102613
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 768586
  • Archival Resource Key: ark:/67531/metadc718243

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  • November 1, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 11, 2017, 2:45 p.m.

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Shull, R. D.; Shapiro, A. J.; Gornakov, V. S.; Nikitenko, V. I.; Jiang, J. S.; Kaper, H. et al. Spin spring behavior in exchange coupled soft and high-coercivity hard ferromagnets., article, November 1, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc718243/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.