Data and code for: Signatures of collapse and smearing of the altermagnetic splitting in the c-axis terahertz and infrared conductivity of CrSb

First-principles inputs and results (Quantum ESPRESSO unit-cell and spin-disordered supercell calculations, Wannier90 inputs), the Wannier Hamiltonian of CrSb, and the code (tight-binding model, single-site coherent-potential approximation for spin disorder, Kubo-Greenwood conductivity) with the computed results for the c-axis and in-plane terahertz and infrared conductivity and the resistivity of the altermagnet CrSb across its Néel temperature, together with the source data of all figures. See README.md in the archive.