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Effects of lanthanide and manganese dopants on the crystal structure of BiFeO3
Enhancement of the ferroelectric properties of multiferroic BiFeO3 are known to occur when small amounts of Bi are replaced by lanthanide ions. Further levels of lanthanide... -
Temperature induced structural phase transitions in BaPrO3 and acceptor doped...
The sequence of structural phase transitions that occur in distorted ABO3 perovskites as a function of temperature is of intrinsic interest for better understanding of the... -
Study of cation disorder, oxygen vacancy ordering and proton sites in La2-xNd...
On the basis of X-ray diffraction the oxygen deficient La2-xNdxCe2O7 series displays a transition from disordered fluorite to the C-type superstructure in which the cations... -
In-situ hydration and total scattering studies of Ba2In2-xMxO5 (M = Y and Ga)...
Motivated by the goal of improving the proton conduction in the brownmillerite Ba2In2O5 we are investigating the role of isovalent substitution at the indium sites. In... -
Search for high pressure phase transitions in Bi0.8Ln0.2FeO3 (Ln = La and Tb)
The crystal and magnetic structures of two substituted variants of the multiferroic phase BiFeO3 will be studied as a function of pressure. Both Bi0.8La0.2FeO3 and... -
In-situ Neutron Diffraction Study of Proton Conducting Perovskite Oxide BaZr0...
Acceptor-doped perovskite oxides exhibit significant proton conductivity under humid or hydrogen containing atmosphere, which opens a unique possibility to be used as... -
Structural phase transitions in proton conducting BaCe0.8Y0.2O3-d as function...
The structure dependence of BaCe0.8Y0.2O3-d (BCY-20), a leading proton conducting material, will be studied as a function of temperature and, critically, controlled atmosphere... -
Oxide Ionic Conductivity in Anion-Deficient Fluorites
The last couple of decades have seen a rapidly increasing interest in new environment friendly energy sources and one key aspect of this research involves characterisation of...
