Hetero-epitaxial strain dependence of Terahertz conductivity in NdNiO3

Terahertz Time domain spectroscopic investigations on the effects of hetero-epitaxial strain on NdNiO₃ are presented. The terahertz optical conductivity data obtained for thin films of NdNiO₃ points towards stronger electron-electron correlation effects under compressive strain as a higher resistive state manifests, whereas, they are weaker for the tensile strained films.