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Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy
Jiang, S; Liu, J; Bai, LG; Li, XD; Li, YC; He, SM; Yan, S; Liang, DX
2018
Source PublicationAIP ADVANCES
ISSN2158-3226
Volume8Issue:2Pages:-
Subtype期刊论文
AbstractThe structural stability of hexagonal Nd2O3 under pressure has been investigated by in situ synchrotron angle dispersive x-ray diffraction and Raman spectroscopy up to 53.1 GPa and 37.0 GPa, respectively. Rietveld analysis of the x-ray diffraction data indicate that the hexagonal Nd2O3 undergoes an isostructural phase transition in the pressure range from 10.2 to 20.3 GPa, accompanied by anomalous lattice compressibility and pressure-volume curve. A third-order Birch-Murnaghan fit based on the observed Pressure-Volume data yields zero pressure bulk moduli (B-0) of 142(4) and 183(6) GPa for the low and high pressure hexagonal phases, respectively. Raman spectroscopy confirms this isostructural transition, the pressure dependence of the Raman modes display noticeable breaks in the pressure range of 9.7-20.9 GPa, which is consistent with the change of Nd-O bond length. The pressure coefficients of Raman peaks and the mode Gruneisen parameters of different Raman modes were also determined. (c) 2018 Author(s).
KeywordRare-earth Sesquioxides High-pressure Phase-transition Ab-initio Vibrational-spectra Transformation Deposition Crystals Er2o3 Films
DOI10.1063/1.5018020
Indexed BySCI
Language英语
WOS IDWOS:000426580900019
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28929
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.Jiang, S
2.Liu, J
3.Bai, LG
4.Li, XD
5.Li, YC
6.He, SM
7.Yan, S
8.Liang, DX
Recommended Citation
GB/T 7714
Jiang, S,Liu, J,Bai, LG,et al. Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy[J]. AIP ADVANCES,2018,8(2):-.
APA Jiang, S.,Liu, J.,Bai, LG.,Li, XD.,Li, YC.,...&Liang, DX.(2018).Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy.AIP ADVANCES,8(2),-.
MLA Jiang, S,et al."Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy".AIP ADVANCES 8.2(2018):-.
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