Synthesis, Crystal Structure, and Electronic Properties of the CaRE3SbO4 and Ca2RE8Sb3O10 phases (RE = Rare-Earth Metal)

Through high temperature synthesis at 1300 °C and above, our group has discovered and characterized the novel CaRE3SbO4 and Ca2RE8Sb3O10 phases (RE = Ce–Nd, Sm–Dy for CaRE3SbO4, RE = La–Nd, Sm–Dy for Ca2RE8Sb3O10). This result was motivated by the idea of opening a band gap and introducing structural complexity in the rare-earth antimonide framework by incorporation of rare-earth oxide and calcium oxide. The CaRE3SbO4 phases adopt the …