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Numerical Calculation of Non-uniform Magnetization Using Experimental Magnetic Field Data

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Abstract

A relation between the distance from the surface of a magnet and the number of cells required for a numerical calculation in order to secure the error below a certain threshold is derived. We also developed a method to obtain the magnetization at each part of the magnet from the experimentally measured magnetic field. This method is applied to three magnets with distinct patterns on magnetic-field-viewing film. Each magnet showed a unique pattern of magnetization. We found that the magnet that shows symmetric magnetization on the magnetic-field-viewing film is not uniformly magnetized. This method can be useful comparing the magnetization between magnets that yield typical magnetic field and those that yield atypical magnetic field.

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Authors and Affiliations

  1. Department of Physics, Seoul National University, Seoul, 08826, Korea

    Bukyoung Jhun

  2. Department of Science Education, Seoul National University of Education, Seoul, 06639, Korea

    Youngseok Jhun

  3. Department of Computer Science and Engineering, Korea University, Seoul, 02841, Korea

    Seung-wook Kim & JungHyun Han

Authors
  1. Bukyoung Jhun
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  2. Youngseok Jhun
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  3. Seung-wook Kim
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  4. JungHyun Han
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Correspondence to Youngseok Jhun.

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Jhun, B., Jhun, Y., Kim, Sw. et al. Numerical Calculation of Non-uniform Magnetization Using Experimental Magnetic Field Data. J. Korean Phys. Soc. 72, 1058–1062 (2018). https://doi.org/10.3938/jkps.72.1058

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  • DOI: https://doi.org/10.3938/jkps.72.1058

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