Alkali Bismuth Niobates, RbBi<SUB>2</SUB>Nb<SUB>5</SUB>O<SUB>16</SUB> and CsBi<SUB>2</SUB>Nb<SUB>5</SUB>O<SUB>16</SUB>, with a Pyrochlore Structure

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Description

A phase equilibrium study of the ternary system A2O–Bi2O3–Nb2O5 (A=K, Rb or Cs) has been made. An extended range of a solid solution with the pyrochlore-type structure was found in the respective system. The composition of this new phase is described by a representative formula ABi2Nb5O16, which exists mainly along a composition range BiNbO4–ANb3O8. Phase diagrams of BiNbO4–ANb3O8 systems with A=K, Rb and Cs were determined.<BR>Large single crystals of RbBi2Nb5O16 and CsBi2Nb5O16 were grown by the pulling method. They exhibit dielectric anomalies at 120–130 K.

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Details 詳細情報について

  • CRID
    1570291227429165696
  • NII Article ID
    110003910872
  • NII Book ID
    AA10457675
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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