Compressibilities of TbVO₄ and DyVO₄ Calculated from Spectroscopic Data

Authors: Chen, G.¹; Haire, R.G.²; Peterson, J.R.³

Source: Applied Spectroscopy, Volume 46, Issue 10, Pages 1447-1592 (October 1992) , pp. 1495-1497(3)

Publisher: Society for Applied Spectroscopy

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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, v₁(A_g), through an empirical correlation between v₁(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: Raman spectroscopy; Spectroscopic techniques; Compressibility; Equation of state

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: 1992-10-01

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