Correlation Between Theoretical and Experimental Values of E∗ for TrZr2/3 Superconductors

Abstract

The magnetic anisotropy energy density (E∗) is a critical parameter influencing the superconducting and structural behavior of TrZr2and TrZr3 compounds, where Tr is a transition metal. However, direct measurements of E∗ remain scarce. In this study, we estimate E∗ using both empirical and crystallographic models and correlate these values with indirect experimental observables such as thermal expansion, superconducting transition temperature (Tc), and local structural flexibility. Our results reveal consistent trends linking anisotropic energy with structural and electronic properties, offering a predictive framework for designing new anisotropic superconductors