Vibrational dynamics of the WOW and WOOW bridge bonds: polarized infrared and Raman spectra of monoclinic KBi(WO<sub>4</sub>)<sub>2</sub> single crystal
J Hanuza; M Maczka; J H van der Maass; J Hanuza; W. Trzebiatowski Inst. for Low Temp. & Structure Res., Polish Acad. of Sci., Wroclaw, Poland; M Maczka; W. Trzebiatowski Inst. for Low Temp. & Structure Res., Polish Acad. of Sci., Wroclaw, Poland; J H van der Maass; W. Trzebiatowski Inst. for Low Temp. & Structure Res., Polish Acad. of Sci., Wroclaw, Poland
Журнал:
Journal of Physics: Condensed Matter
Дата:
1994-11-21
Аннотация:
Polarized Raman spectra in the 40-1000 cm<sup>-</sup>1 frequency range and polarized reflection IR spectra in the 580-1000 cm<sup>-</sup>1 range were measured for the KBi(WO<sub>4</sub>)<sub>2</sub> single crystal. Factor group analysis has been performed and the results of these calculations were used to determine the nature of the observed phonons. The spectra obtained are interpreted on the basis of the dimer structure plus weak perturbations corresponding to WOW interactions.
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