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Infrared and Raman spectroscopy studies of the α–β phase transition in cristobalite

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Abstract

Infrared and Raman spectra of cristobalite are presented as a function of temperature through the phase transition. The modes are assigned and the assignments compared to those of earlier workers. The compatibility of modes at the Γ-point of the α-phase with the X and Γ-points of the β-phase is given. In the transition region of ca. 500–550 K, smooth changes in intensity, frequency and linewidths are seen in many modes, indicative of coexistence of α- and β-forms.

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Acknowledgments.

We would like to thank Kenton Hammonds (Cambridge) for the symmetry analysis of Table 2, Andrew Ridgwell (Cambridge and UEA) for help with the IR experiments, and Hugh Vass and Wilson Poon (Edinburgh) for the Raman experiments. Computer support was provided in part from a grant awarded by the Royal Society (UK).

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  1. I. P. Swainson

    Present address: CrystalMaker Software, P.O. Box 183, Bicester, Oxfordshire, OX26 3TA, UK

Authors and Affiliations

  1. Neutron Program for Materials Research, SIMS, National Research Council of Canada, Chalk River Laboratories, Chalk River, Ontario, K0 J 1J0, Canada

    I. P. Swainson

  2. Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, UK

    M. T. Dove

  3. Department of Earth Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK

    D. C. Palmer

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  1. I. P. Swainson
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  2. M. T. Dove
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  3. D. C. Palmer
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Correspondence to I. P. Swainson.

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Swainson, I., Dove, M. & Palmer, D. Infrared and Raman spectroscopy studies of the α–β phase transition in cristobalite. Phys Chem Minerals 30, 353–365 (2003). https://doi.org/10.1007/s00269-003-0320-8

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  • DOI: https://doi.org/10.1007/s00269-003-0320-8

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