Hidden structural transition in epitaxial Ca${}_{0.5}$Sr${}_{0.5}$IrO${}_3$/SrTiO${}_3$ thin film

W. T. Jin, H. Gretarsson, S. Y. Jang +3

A structural transition in an ABO${}_3$ perovskite thin film involving the change of the BO${}_6$ octahedral rotation pattern can be hidden under the global lattice symmetry impose…