Raman spectra of niobium oxides
作者： A.Ann McConnell , J.S. Aderson , C.N.R. Rao
DOI: 10.1016/0584-8539(76)80291-7
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摘要: Abstract Raman spectra of various types niobium oxides have been studied along with their i.r. and the interpreted in light structures oxides. Besides discussing LO-TO splitting these oxides, bands characteristic edge-shared corner-shared NbO6, octahedra assigned. Tetrahedral modes NbO4, PO4, VO4 units present some assigned to distinct indicating negligible coupling between tetrahedra NbO6 octahedra. The PNb9O25 analogues suggest that they belong I4/m space group rather than IZ 4 - group.
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