The role of π-bonding on the high temperature structure of the double perovskites Ba2CaUO6and BaSrCaUO6
Keyword(s):
X Ray
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High temperature synchrotron X-ray and neutron diffraction powder diffraction studies of the uranium perovskites Ba2CaUO6and BaSrCaUO6reveal unusual phase transition behavior associated with the progressive loss of cooperative octahedral tilting.