Transition from single-domain to vortex state in soft magnetic cylindrical nanodots.

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The authors have investigated the magnetic properties of submicron soft magnetic cylindrical nanodots using an analytical model as well as three dimensional numerical finite element simulations. A detailed comparison of the magnetic vortex state shows the differences between these two models. It appears that the magnetic surface charges play a crucial role in the equilibrium magnetization distribution especially for shifted vortices. In addition magnetic volume charges, which arise from a radial component of the magnetization, have been found. Finally, the magnetic phase diagram for soft magnetic particles with varying aspect ratio is presented.

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Scholz, W.; Guslienko, K. Yu.; Novosad, V.; Suess, D.; Schrefl, T.; Chantrell, R. W. et al. October 9, 2002.

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The authors have investigated the magnetic properties of submicron soft magnetic cylindrical nanodots using an analytical model as well as three dimensional numerical finite element simulations. A detailed comparison of the magnetic vortex state shows the differences between these two models. It appears that the magnetic surface charges play a crucial role in the equilibrium magnetization distribution especially for shifted vortices. In addition magnetic volume charges, which arise from a radial component of the magnetization, have been found. Finally, the magnetic phase diagram for soft magnetic particles with varying aspect ratio is presented.

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  • 4th International Conference on Fine Particle Magnetism, Pittsburgh, PA (US), 08/14/2002--08/16/2002

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  • Report No.: ANL/MSD/CP-108034
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 803884
  • Archival Resource Key: ark:/67531/metadc739740

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  • October 9, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 24, 2016, 3:09 p.m.

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Scholz, W.; Guslienko, K. Yu.; Novosad, V.; Suess, D.; Schrefl, T.; Chantrell, R. W. et al. Transition from single-domain to vortex state in soft magnetic cylindrical nanodots., article, October 9, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc739740/: accessed December 10, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.