Correlation Between Magnetic Anisotropy and Superconducting Properties in NbScTiZr Alloy

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Abstract

This study establishes quantitative empirical relationships between the magnetic anisotropy energy (E*) and critical superconducting parameters — critical temperature (T_c) and critical current density (J_c) — in the multi-principal element alloy NbScTiZr. Based on experimental data across various processing conditions, we derive modified BCS-like and power-law models that relate E* to T_c and J_c, incorporating strain effects and flux pinning mechanisms. A unified model is proposed to guide alloy processing for optimal superconducting performance. The results demonstrate the potential of anisotropy engineering in high-performance superconducting materials

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