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Title: High pressure polymorphs and amorphization of upconversion host material NaY(WO 4) 2

The pressure effect on the structural change of upconversion host material NaY(WO 4) 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.
Authors:
ORCiD logo [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Center for High Pressure Science and Technology Advanced Research, Shanghai (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Univ. of Wollongong, NSW (Australia)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Center for High Pressure Science and Technology Advanced Research, Shanghai (China)
  5. Center for High Pressure Science and Technology Advanced Research, Shanghai (China); Carnegie Inst. of Washington, Washington, DC (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231; U1530402
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 4; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Center for High Pressure Science and Technology Advanced Research, Shanghai (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE; National Natural Science Foundation of China (NNSFC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; High pressure; Crystal structure; X-ray diffraction; Phase transitions; Laser materials
OSTI Identifier:
1379527

Hong, Fang, Yue, Binbin, Cheng, Zhenxiang, Kunz, Martin, Chen, Bin, and Mao, Ho-Kwang. High pressure polymorphs and amorphization of upconversion host material NaY(WO4)2. United States: N. p., Web. doi:10.1063/1.4960104.
Hong, Fang, Yue, Binbin, Cheng, Zhenxiang, Kunz, Martin, Chen, Bin, & Mao, Ho-Kwang. High pressure polymorphs and amorphization of upconversion host material NaY(WO4)2. United States. doi:10.1063/1.4960104.
Hong, Fang, Yue, Binbin, Cheng, Zhenxiang, Kunz, Martin, Chen, Bin, and Mao, Ho-Kwang. 2016. "High pressure polymorphs and amorphization of upconversion host material NaY(WO4)2". United States. doi:10.1063/1.4960104. https://www.osti.gov/servlets/purl/1379527.
@article{osti_1379527,
title = {High pressure polymorphs and amorphization of upconversion host material NaY(WO4)2},
author = {Hong, Fang and Yue, Binbin and Cheng, Zhenxiang and Kunz, Martin and Chen, Bin and Mao, Ho-Kwang},
abstractNote = {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.},
doi = {10.1063/1.4960104},
journal = {Applied Physics Letters},
number = 4,
volume = 109,
place = {United States},
year = {2016},
month = {7}
}

Works referenced in this record:

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High-pressure structural study of the scheelite tungstates CaWO4 and SrWO4
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