Roughness-Induced Magnetic Domain in Fe Thin Films on Land-and-Groove Structures Studied by Spin-Polarized Secondary Electron Microscopy

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概要

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• The magnetic domain structures of Fe thin films on two-dimensionally arranged land-and-groove structures have been studied by spin-polarized secondary electron microscopy (SP-SEM) under an applied dc field. The coercive force on the land area was found to be higher than that on the groove area under magnetization reversal. The surface roughness measured by atomic force microscopy (AFM) was greater on the land area than on the groove area. The roughness-induced high-coercivity on the land prevented the reversed magnetic domain on the groove from spreading over the land in the initial magnetization reversal. This result indicates that surface roughness is an important factor in domain size control of thin magnetic films.

• 2003-10-15

著者

• Ueda Shigenori

  Photodynamics Research Center The Institute Of Physical And Chemical Research (riken)

• IWASAKI Yoh

  Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN)

• Ushioda Sukekatsu

  Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN), Sendai 980-0845, Japan

• Iwasaki Yoh

  Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN), Sendai 980-0845, Japan

関連論文

• Roughness-Induced Magnetic Domain in Fe Thin Films on Land-and -Groove Structures Studied by Spin-Polarized Secondary Electron Microscopy
• Roughness-Induced Magnetic Domain in Fe Thin Films on Land-and-Groove Structures Studied by Spin-Polarized Secondary Electron Microscopy

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