CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Structural transformations in cubic Dy2O3 at high pressures
Jiang, Sheng; Liu, Jing; Lin, Chuanlong; Bai, Ligang; Zhang, Yufeng; Li, Xiaodong; Li, Yanchun; Tang, Lingyun; Wang, Hua
2013
Source PublicationSOLID STATE COMMUNICATIONS
ISSN0038-1098
Volume169Pages:CONCATENATE(Sheet1!I322,-Sheet1!J322)
AbstractThe structural stability of cubic Dy2O3 under high pressure has been investigated using synchrotron radiation in a diamond anvil cell up to 49.0 GPa. The diffraction data reveals the cubic phase undergoes two successive phase transitions on compression. The phase transition from a cubic to a monoclinic structure starts at 7.7 GPa and is complete at 18.8 GPa with a similar to 7.9% volume collapse. The monoclinic phase further transforms to a hexagonal phase starting at similar to 10.9 GPa and the hexagonal phase becomes dominant at 26.6 GPa. This high-pressure hexagonal phase with a small amount of retained monoclinic phase is stable up to the highest pressure of 49.0 GPa in this study. After pressure release, Dy2O3 is a monoclinic structure. A third-order Birch-Murnaghan fit yields zero pressure bulk moduli (B-0) of 191(4), 179(9) and 231(22) GPa and their pressure derivatives (B'(0)) of 2.8(7), 42(6), 3.5(6) for the cubic, monoclinic and hexagonal phases, respectively. Comparing with other rare-earth sesquioxides, we confirm that the transition pressure from cubic to monoclinic phase, as well as the bulk modulus of the cubic phase, increases with the decreasing of the cation radius of rare-earth sesquioxides. (C) 2013 Elsevier Ltd. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000324452400009
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13921
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Jiang, Sheng,Liu, Jing,Lin, Chuanlong,et al. Structural transformations in cubic Dy2O3 at high pressures[J]. SOLID STATE COMMUNICATIONS,2013,169:CONCATENATE(Sheet1!I322,-Sheet1!J322).
APA Jiang, Sheng.,Liu, Jing.,Lin, Chuanlong.,Bai, Ligang.,Zhang, Yufeng.,...&Wang, Hua.(2013).Structural transformations in cubic Dy2O3 at high pressures.SOLID STATE COMMUNICATIONS,169,CONCATENATE(Sheet1!I322,-Sheet1!J322).
MLA Jiang, Sheng,et al."Structural transformations in cubic Dy2O3 at high pressures".SOLID STATE COMMUNICATIONS 169(2013):CONCATENATE(Sheet1!I322,-Sheet1!J322).
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