Compressibilities of TbVO4 and DyVO4 Calculated from Spectroscopic Data

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Abstract:

The compressibilities of TbVO4 and DyVO4 were estimated indirectly from the pressure dependence of the Raman stretching frequencies of the vanadium-oxygen (V-O) bonds, v 1(A g), through an empirical correlation between v 1(A g) and the corresponding bond lengths. Volume compressibilities of 6.71 × 10−3 GPa−1 (bulk modulus 149 GPa) and 6.23 × 10−3 GPa−1 (bulk modulus 160 GPa) were derived for TbVO4 and DyVO4, respectively. This approach provides a straightforward method to estimate the compressibility and equation of state (EOS) of crystals via Raman spectroscopic measurements.

Keywords: Compressibility; Equation of state; Raman spectroscopy; Spectroscopic techniques

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370292789619124

Affiliations: 1: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600 2: Chemistry Division (Transuranium Research Laboratory), Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6375 3: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600; Chemistry Division (Transuranium Research Laboratory), Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6375

Publication date: October 1, 1992

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