Mössbauer and DTA Studies on the Structure of Semiconducting Sodium Vanadate Glasses

Abstract

<jats:title>Abstract</jats:title> <jats:p>Distinct decreases in the quadrupole splitting of the tetrahedral Fe3+ ions and the Tg suggest a gradual change from the layer structure composed of the VO5 tetragonal pyramids to the chain structure composed of the VO4 tetrahedra. It is also concluded that nonbridging oxygen atoms are present in the VO4 tetrahedra.</jats:p>

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