Theoretical and empirical framework correlates superconducting properties with composition and texture in Zintl-type compounds, suggesting key energy descriptors.
This study presents a unified theoretical and empirical framework correlating crystallographic texture, elemental composition, and superconducting properties in the Zintl-type compound series EuIn₂As₂₋ₓPₓ (0 ≤ x ≤ 2). By redefining the superconductivity composition descriptor (%Si) as a weighted average of Eu, In, As, and P contributions, and the texture factor (A) as a weighted sum of orientation components (cube, Goss, gamma, random), an empirical model is developed to predict an energy term EE (in kJ/m³) associated with magnetic anisotropy and superconductivity. Regression analysis yields high R² values for models linking energy with critical temperature (TcT_c), critical current density (JcJ_c), coherence length (ξξ), vortex pinning energy (U0U_0), and penetration depth (λλ). These results support the role of EE as a central unifying descriptor for superconducting behavior in textured Zintl compounds
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Sudhakar Geruganti (2025) studied this question.
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