High pressure polymorphs and amorphization of upconversion host material NaY(WO4)2
- Center for High Pressure Science and Technology Advanced Research, Shanghai (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Wollongong, NSW (Australia)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Center for High Pressure Science and Technology Advanced Research, Shanghai (China)
- Center for High Pressure Science and Technology Advanced Research, Shanghai (China); Carnegie Inst. of Washington, Washington, DC (United States)
The pressure effect on the structural change of upconversion host material NaY(WO4)2 was studied in this paper by using in-situ synchrotron X-ray diffraction. A transition from the initial scheelite phase to the M-fergusonite phase occurs near 10 GPa, and another phase transition is found near 27.5 GPa, which could be an isostructural transition without symmetry change. The sample becomes amorphous when the pressure is fully released from high pressure. Finally, this work demonstrates the possibility of synthesizing various polymorph structures for non-linear optical applications with a high pressure, chemical doping, or strained thin-film nanostructure process.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); USDOE
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1379527
- Alternate ID(s):
- OSTI ID: 22594372
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 4 Vol. 109; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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