High-pressure Raman scattering and x-ray diffraction of phase transitions in MoO3
文献类型：期刊论文
| 作者 | Liu, D; Lei, WW; Hao, J; Liu, DD; Liu, BB; Wang, X ; Chen, XH; Cui, QL; Zou, GT; Liu, J
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| 刊名 | JOURNAL OF APPLIED PHYSICS
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| 出版日期 | 2009 |
| 卷号 | 105期号:2页码:23513 |
| 关键词 | bond angles bond lengths elastic moduli equations of state high-pressure effects molybdenum compounds Raman spectra solid-state phase transformations X-ray diffraction |
| 通讯作者 | [Liu, D. ; Lei, W. W. ; Hao, J. ; Liu, D. D. ; Liu, B. B. ; Wang, X. ; Chen, X. H. ; Cui, Q. L. ; Zou, G. T.] Jilin Univ, Natl Lab Superhard Mat, Changchun 130012, Peoples R China ; [Liu, J. ; Jiang, S.] Chinese Acad Sci, Beijing Synchrotron Radiat Lab, Inst High Energy Phys, Beijing 100039, Peoples R China |
| 英文摘要 | The high-pressure behavior of molybdenum trioxides (MoO3) has been investigated by angle-dispersive synchrotron x-ray powder diffraction and Raman spectroscopy techniques in a diamond anvil cell up to 43 and 30 GPa, respectively. In the pressure range of up to 43 GPa, structural phase transitions from the orthorhombic alpha-MoO3 phase (Pbnm) to the monoclinic MoO3-II phase (P2(1)/m), and then to the monoclinic MoO3-III phase (P2(1)/c), occurred at pressures of about 12 and 25 GPa at room temperature, respectively. Our observation of the transition from the orthorhombic alpha-MoO3 to the monoclinic MoO3-II phase is in disagreement with earlier studies in which the phase transition could not be obtained when only pressure is applied. The changes in the Mo-O distances and O-Mo-O and Mo-O-Mo angles may explain the changes in Raman spectrum. The pressure dependence of the volume of two monoclinic high-pressure phases is described by a third-order Birch-Murnaghan equation of state, which yields a bulk modulus value of B-0=143.41(3) GPa with B-0(')=12, and B-0=261.9(3) GPa with B-0(')=3.5. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000262970900030 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240496]  |
| 专题 | 高能物理研究所_多学科研究中心 中国科学院高能物理研究所_中国散裂中子源 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Liu, D,Lei, WW,Hao, J,et al. High-pressure Raman scattering and x-ray diffraction of phase transitions in MoO3[J]. JOURNAL OF APPLIED PHYSICS,2009,105(2):23513. |
| APA | Liu, D.,Lei, WW.,Hao, J.,Liu, DD.,Liu, BB.,...&蒋升.(2009).High-pressure Raman scattering and x-ray diffraction of phase transitions in MoO3.JOURNAL OF APPLIED PHYSICS,105(2),23513. |
| MLA | Liu, D,et al."High-pressure Raman scattering and x-ray diffraction of phase transitions in MoO3".JOURNAL OF APPLIED PHYSICS 105.2(2009):23513. |
入库方式： OAI收割
来源：高能物理研究所
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