Structure in nitrate glasses: Raman spectra of TlNO₃-Cd(NO₃)₂ glass and mixed crystal

Abstract

The Raman spectra of the equimolar mixture of Cd(NO₃)₂ and TlNO₃ in the glassy and crystalline states have been measured over a range of temperatures. The alternative interpretations of the results in terms of distinct anion sites or a continuum of cation distributions are examined. Strong similarities between the spectra of the crystalline and glassy states indicate that three anion sites predominate. In two of these, the environment is dominated by either cadmium ions or thallium ions, whereas the third appears to have a mixture of the two cations.