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Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy
Jiang, S; Liu J(刘景); Bai LG(白利刚); Li XD(李晓东); Li YC(李延春); Liu, J; Bai, LG; Li, XD; Li, YC; He, SM; Yan, S; Liang, DX
2018
Source PublicationAIP ADVANCES
ISSN2158-3226
Volume8Issue:2Pages:25019
SubtypeArticle
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).
DOI10.1063/1.5018020
WOS KeywordRARE-EARTH SESQUIOXIDES ; HIGH-PRESSURE ; PHASE-TRANSITION ; AB-INITIO ; VIBRATIONAL-SPECTRA ; TRANSFORMATION ; DEPOSITION ; CRYSTALS ; ER2O3 ; FILMS
Indexed BySCI ; EI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000426580900019
EI Accession Number20181004858166
ADS Bibcode2018AIPA....8b5019J
Citation statistics
Cited Times:5 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285703
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
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):25019.
APA Jiang, S.,刘景.,白利刚.,李晓东.,李延春.,...&Liang, DX.(2018).Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy.AIP ADVANCES,8(2),25019.
MLA Jiang, S,et al."Anomalous compression behaviour in Nd2O3 studied by x-ray diffraction and Raman spectroscopy".AIP ADVANCES 8.2(2018):25019.
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