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Published Online: 22 April 2015
Accepted: January 2015

Reconstruction of magnetic domain structure using the reverse Monte Carlo method with an extended Fourier image

Journal of Applied Physics 117, 17D149 (2015); https://doi.org/10.1063/1.4918955
Maki Tokii1, a), Eiji Kita2, Chiharu Mitsumata3, Kanta Ono4, Hideto Yanagihara2, and Makoto Matsumoto1
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ABSTRACT
Visualization of the magnetic domain structure is indispensable to the investigation of magnetization processes and the coercivity mechanism. It is necessary to develop a reconstruction method from the reciprocal-space image to the real-space image. For this purpose, it is necessary to solve the problem of missing phase information in the reciprocal-space image. We propose the method of extend Fourier image with mean-value padding to compensate for the phase information. We visualized the magnetic domain structure using the Reverse Monte Carlo method with simulated annealing to accelerate the calculation. With this technique, we demonstrated the restoration of the magnetic domain structure, obtained magnetization and magnetic domain width, and reproduced the characteristic form that constitutes a magnetic domain.

ACKNOWLEDGMENTS

This research was supported by the Japan Science and Technology Agency (JST) under Collaborative Research Based on Industrial Demand “High Performance Magnets: Towards Innovative Development of Next Generation Magnets.”

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  1. © 2015 AIP Publishing LLC.

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