Skip to main content

Advertisement

Log in

Quartz metastability at high pressure: what new can we learn from polarized Raman spectroscopy?

  • Original Paper
  • Published:
Physics and Chemistry of Minerals Aims and scope Submit manuscript

Abstract

The pressure dependence of the polarized Raman scattering of quartz was studied under hydrostatic conditions up to 9 GPa. We extended the available pressure calibrations, usually limited to the two most intense peaks, to a larger number of modes, providing polynomial functions that describe the relationship between pressure P and wavenumber shift \(\Delta \omega\) for the 128-, 206-, 265-, 464-, 696-, 809-, 1080- and 1161-\(\hbox {cm}^{-1}\) modes. For the first time, the pressure behavior of the LO-TO splitting is characterized up to 9 GPa under hydrostatic conditions. The pressure-induced wavenumber changes and derived phonon compressibilities show that longitudinal and transverse modes can be used interchangeably for the calculation of strains through the Grüneisen tensor to derive the strains in crystals, such as mineral inclusions, under non-hydrostatic conditions. A careful examination of the linewidths as a function of pressure shows that they are sensitive to the metastability of the quartz structure with respect to the high-pressure silica polymorphs. It is proposed that strong multiphonon interactions contribute to the stability of the structure of quartz at ambient conditions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

Download references

Acknowledgements

We thank Lukas Panitz and Dr. Naemi Waeselmann, University of Hamburg, for help in collecting the Raman data. This work was financially supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program Grant Agreement 714936 to M. Alvaro.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Marta Morana.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 65 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Morana, M., Mihailova, B., Angel, R.J. et al. Quartz metastability at high pressure: what new can we learn from polarized Raman spectroscopy?. Phys Chem Minerals 47, 34 (2020). https://doi.org/10.1007/s00269-020-01100-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00269-020-01100-y

Keywords

Navigation