Observation of lattice softening at $T_{\mathrm{c}}$ in the FeSe${}_{0.5}$Te${}_{0.5}$ superconductor

J. Lindén, J. -P. Libäck, M. Karppinen +2

Polycrystalline samples of FeSe${}_{0.5}$Te${}_{0.5}$ were synthesized using a conventional solid-state reaction method. The onset of bulk superconductivity transition was confirmed by…