<![CDATA[As an extension of our previous theoretical study, we perform temperature-dependent optical conductivity calculations on La0.7Ca0.3MnO3 over a wide photon-energy range up to ∼22 eV, aiming to capture the metal–insulator transition while preserving the general temperature-dependent profile at higher photon energies. The system is modeled with simple Mn–O coordination via the tight-binding method, where some hopping integrals are considered functions of magnetization. Upon incorporating the static Jahn–Teller effect with Coulomb–Hubbard and magnetic exchange interactions, with the exception of a quantitative difference in the calculated of K versus the experimental value (260 K) and discrepancies in the mid-energy regime, the results reproduce the qualitative temperature-dependent optical conductivity trends, especially for the low- and high-energy regimes, as observed in the experimental data. This qualitative agreement is achieved by setting the magnetization-dependent hopping parameters for the Mn–O hopping parameters, and , as , with eV, eV, eV, eV, eV, and eV. The results underscore the importance of correlation effects arising from the interplay of the lattice, charge, and magnetic degrees of freedom in determining the overall profile of the temperature-dependent optical response of manganite, connecting the physics of the high-energy optical response and the transport properties at the dc limit.]]>
