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<p>This study reports the electrodesposition of ReMo alloy thin film superconductors with enhanced critical temperature and thermal stability up to 700&#xa0;°C. The alloy compositions are controlled with electrolyte chemistry and deposition potential. The effect of thermal annealing on the grain structure and superconductivity of films are systematically studied with respect to film composition and annealing temperatures. While the films with lower Mo content recrystallize into the closed pack hexagonal structure with degrading superconductivity, only the cubic α-Mn phase, or χ phase, is observed with higher Mo content, exhibiting a further enhanced superconductivity after annealing. The study provides a viable path for integrating the electrodeposition process for the fabrication of superconducting device.</p>

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Electrodeposited ReMo alloy films with enhanced superconductivity and thermal stability

  • 期刊论文

  • 发表日期：

    2025年10月10日

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  • Quanhong Liu,
  • Qiang Huang

摘要

This study reports the electrodesposition of ReMo alloy thin film superconductors with enhanced critical temperature and thermal stability up to 700 °C. The alloy compositions are controlled with electrolyte chemistry and deposition potential. The effect of thermal annealing on the grain structure and superconductivity of films are systematically studied with respect to film composition and annealing temperatures. While the films with lower Mo content recrystallize into the closed pack hexagonal structure with degrading superconductivity, only the cubic α-Mn phase, or χ phase, is observed with higher Mo content, exhibiting a further enhanced superconductivity after annealing. The study provides a viable path for integrating the electrodeposition process for the fabrication of superconducting device.