Raman intensities near gypsum-bassanite transition in natural gypsum
The phase transition sequence of natural gypsum (CaSO4 · 2H2O) was studied by Raman spectroscopy in the temperature range 300–550 K. The reduced peak intensity of the symmetric stretching mode around 1008 cm−1 varied anomalously during the gypsum–bassanite transition. From the spectral variations of...
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| Published in | Journal of Raman spectroscopy Vol. 30; no. 8; pp. 693 - 696 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Chichester, UK
John Wiley & Sons, Ltd
01.08.1999
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| Online Access | Get full text |
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| Summary: | The phase transition sequence of natural gypsum (CaSO4 · 2H2O) was studied by Raman spectroscopy in the temperature range 300–550 K. The reduced peak intensity of the symmetric stretching mode around 1008 cm−1 varied anomalously during the gypsum–bassanite transition. From the spectral variations of this mode in the temperature range 300–415 K, the order parameter exponent β was estimated to be 0.46 ± 0.07. Copyright © 1999 John Wiley & Sons, Ltd. |
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| Bibliography: | istex:6A744EB93A5F6BDC34C0DEF7065E2751756CE97A ark:/67375/WNG-VNT23WGB-6 ArticleID:JRS434 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0377-0486 1097-4555 |
| DOI: | 10.1002/(SICI)1097-4555(199908)30:8<693::AID-JRS434>3.0.CO;2-8 |