Correlation Effects on Electrical and Magneto-Transport Properties of Actinides

Understanding the impact of electron correlation on the transport properties of correlated solids is crucial for characterizing materials and furthering the development of new technological capabilities. Specifically, the transverse quantum Hall conductivity (tQHC) of correlated materials in the presence of external fields provides an indispensable experimental signature for resolving the many-body character of electronic bands. Theoretical lattice models that approximate the effects of correlation within the Gutzwiller approximation (GA) provide computationally feasible starting points for modeling the tQHC under varying degrees of correlation. However, to-date, such models have assumed uniform double occupancies despite the potential for anisotropy induced by an external magnetic field. Thus, we present a new model for calculating the tQHC in a 2D square lattice which incorporates a more flexible version of the GA; one which allows for nonuniform site-dependent double occupancies. We investigate how the presence of this new flexibility impacts the calculation of the ground state energy, band structure, and tQHC. Lastly, we present progress towards the calculation of the tQHC of a 3D lattice of FCC Pu using this approach and compare our results to available experimental data.