High-pressure induced phase transitions of Y[subscript 2]O[subscript 3] and Y[subscript 2]O[subscript 3]:Eu[superscript 3+]
We investigated high-pressure induced phase transitions in Y{sub 2}O{sub 3} and Eu-doped Y{sub 2}O{sub 3} (Y{sub 2}O:Eu{sup 3+}) using angular dispersive synchrotron x-ray diffraction, Raman spectroscopy, and photoluminescence (PL). With increasing pressure, we observed a series of phase transformations in Y{sub 2}O{sub 3}:Eu{sup 3+}, which followed a structure sequence of cubic {yields} monoclinic {yields} hexagonal, while Y{sub 2}O{sub 3} followed a sequence of cubic {yields} hexagonal. During decompression, both hexagonal structured Y{sub 2}O{sub 3} and Y{sub 2}O{sub 3}:Eu{sup 3+} transformed into monoclinic phases which were quenchable back to ambient pressure. Raman and PL measurements shed additional light on the different phase transition behavior in these two samples.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1005469
- Journal Information:
- Appl. Phys. Lett., Journal Name: Appl. Phys. Lett. Journal Issue: (6) ; 2009 Vol. 94; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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