| http://www.w3.org/ns/prov#value | - AB1???xB???xO3???y wherein A is selected from Ca, Sr or Ba ions; B is selected from Ce, Tb, Pr, or Th ions; B??? is selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Ga, or In ions, or combinations thereof; y depends upon the valences A, B and B??? and is a number that provides for charge balancing and x is greater than or equal to 0.02 and less than or equal to 0.5.
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