Anisotropic Lattice Compression and Pressure-Induced Electronic Phase Transitions in Sr${}_2$IrO${}_4$

K. Samanta, R. Tartaglia, U. F. Kaneko +2

The crystal lattice of Sr${}_2$IrO${}_4$ is investigated with synchrotron X-ray powder diffraction under hydrostatic pressures up to $P=43$ GPa and temperatures down to $20$ K. The tet…