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Raman study of pressure-induced phase transitions in RbIO4

Chandrabhas, N and Sood, Ajay K (1995) Raman study of pressure-induced phase transitions in RbIO4. In: Physical Review B: Condensed Matter, 51 (14). pp. 8795-8800.

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The pressure dependence of the Raman spectra of RbIO4 has been investigated up to 27.3 GPa at room temperature using the diamond-anvil cell. The changes in the Raman spectra show clearly two pressure-induced phase transitions at 5.3 GPa from scheelite to pseudoscheelite and at 7.2 GPa from pseudoscheelite to wolframite. There is an indication of a possible phase transition at 18.3 GPa from wolframite to a denser complex structure. These transitions follow the same sequence as in other compounds such as alkali perrehenates, which crystallize in the scheelite structure. The systematics in pressure-induced phase transitions in alkali periodates is discussed.

Item Type: Journal Article
Publication: Physical Review B: Condensed Matter
Publisher: The American Physical Society
Additional Information: Copyright of this article belongs to The American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 24 May 2011 06:25
Last Modified: 24 May 2011 06:25
URI: http://eprints.iisc.ac.in/id/eprint/37870

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