2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104345Based upon a widely-accepted internal-barrier-layer-capacitance (IBLC) model, the dielectric loss in the giant-dielectric-constant CaCu$_{3}$Ti$_{4}$O$_{12}$ (CCTO) material is expected to decrease as the conductivity of the CCTO grains/subgrains increases. In this letter, we report that this idea was successfully realized through the La-for-Ca substitution in the CCTO ceramics. The impedance spectroscopy analysis gives the evidence.Submitted to APLMaterials ScienceA novel route to lower the dielectric loss in CaCu$_{3}$Ti$_{4}$O$_{12}$ ceramicstext