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Abstract <p>The Monte Carlo method is used to analyze a vortex system of magnesium diboride MgB<sub>2</sub> with a triangular lattice of point defects. Magnetization reversal curves and current‒voltage characteristics are calculated for samples with different pinning center densities. Matching peaks (peak effects) are observed during magnetization reversal, which persist with increasing temperature. The dependences of the critical current on the external magnetic field at a temperature of 30 K are obtained, which are consistent with published data for MgB<sub>2</sub> films grown by hybrid physical-chemical vapor deposition (HPCVD).</p>

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Matching Effect in Magnesium Diboride with a Triangular Lattice of Point Defects

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • A. N. Moroz,
  • R. G. Batulin,
  • A. N. Maksimova,
  • V. A. Kashurnikov

摘要

Abstract

The Monte Carlo method is used to analyze a vortex system of magnesium diboride MgB2 with a triangular lattice of point defects. Magnetization reversal curves and current‒voltage characteristics are calculated for samples with different pinning center densities. Matching peaks (peak effects) are observed during magnetization reversal, which persist with increasing temperature. The dependences of the critical current on the external magnetic field at a temperature of 30 K are obtained, which are consistent with published data for MgB2 films grown by hybrid physical-chemical vapor deposition (HPCVD).