Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 114, Issue 42, Pages 18279-18282Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp106063c
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Funding
- National Natural Science Foundation of China [10874160]
- National Basic Research Program of China [2009CB939901]
- Chinese Academy of Sciences
- University of Science and Technology of China
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The Raman and luminescence spectra of GdVO4:Eu3+ microcrystals have been measured in the pressure range from ambient pressure to 16.4 GPa at room temperature by using a diamond anvil cell. The discontinuities on Raman mode and luminescence intensity and the appearance of new Raman bands and luminescence peaks have provided strong evidence for a phase transition at 7.4 GPa from zircon-type to scheelite-type structure, and the zircon-type and scheelite-type phases coexist over a pressure range of 7.4-16.4 GPa. The scheelite-type phase is retained after release of pressure.
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