Asymmetric 180° Domain Walls in Single Crystal Iron Films
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概要
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New kinds of contrasts of domain wall images have been observed by 1000 kV Lorentx microscopy for single crystal iron films with the thickness ranging 1000-2600 Å. The observed asymmetric contrast agrees with a numerically calculated contrast for the two-dimensional 180°wall with a magnetostatic energy free structure. The wall width of the asymmetric wall is much broader than that of the Bloch wall. The experimentally observed widths of 1500 Å to 3000 Å are comparable with the calculated value of 2200 Å for the 2000 Å thick iron film. The wall energy of the asymmetric 180° wall for a thickness range 400-3500Å is always much lower than that of the 180° Bloch wall.
- 社団法人日本物理学会の論文
- 1972-06-05
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