X-ray and neutron diffraction studies of coupled structural phase transitions in DyBaCo${}_2$O${}_{5.5}$

Yu. P. Chernenkov, V. P. Plakhty, A. G. Gukasov +6

A structural transition at $T\approx 322$ K from the $Pmmm$ to $Pmma$ phase is found to coincide with an anomaly of resistivity. Another structural phase transition doubling the la…