Dysprosium doping of Ca2MnO4: Effect on crystal structure at room temperature and thermal behavior

Dysprosium-doped Ruddlesden−Popper calcium manganates with compositions of Ca2-xDyxMnO4 are potential candidates for high temperature thermoelectric applications. The effect of dysprosium doping on the crystal structure of Ca2-xDyxMnO4 at room temperature and its thermal behavior between RT and 800 °C were investigated in the range 0 < x < 0.2 by Rietveld analysis of RT- and HT- X-ray powder diffraction data. The Rietveld analysis confirmed the...