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Equation of state and structural studies of Na0.5CoO2 under high pressure
Sun, LL; Yi, W; Shi, YG; Li, JQ; Li, YC; Li, XD; Liu, J; Li YC(李延春); Li XD(李晓东); Liu J(刘景)
2007
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
卷号19期号:42页码:425238
通讯作者Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China ; Beijing Natl Lab Condensed Matter, State Key Lab Superconduct, Beijing 100080, Peoples R China ; Beijing Natl Lab Condensed Matter Phys, Lab Adv Mat & Electron Microscope, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
摘要The crystal structure of layered polycrystalline Na0.5CoO2 has been studied under high pressure to 47 GPa by in situ x-ray diffraction (XRD) measurements with a synchrotron radiation source in a diamond anvil cell at room temperature. The ambient pressure phase of Na0.5CoO2 was found to be stable at pressures up to 47 GPa. The experimental data were well represented by the second-order Birch equation of state, which gives values of B-0 = 112 +/- 2.3 GPa and B'(0) = 2.3 +/- 0.1. Simultaneously, the relative Co-O bond length and the Co-O -Co bond angle versus pressure were derived from present experimental XRD data and the data of Hung et al (2004 J. Phys.: Condens. Matter. 16 5803). The results revealed that the configuration of the CoO2 plane distorted significantly at high pressure, which may lead to different magnetic behavior in Na0.5CoO2.
文章类型Article; Proceedings Paper
学科领域Physics
研究领域[WOS]Physics
DOI10.1088/0953-8984/19/42/425238
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语种英语
WOS类目Physics, Condensed Matter
WOS记录号WOS:000249987500039
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/241065
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Sun, LL,Yi, W,Shi, YG,et al. Equation of state and structural studies of Na0.5CoO2 under high pressure[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2007,19(42):425238.
APA Sun, LL.,Yi, W.,Shi, YG.,Li, JQ.,Li, YC.,...&刘景.(2007).Equation of state and structural studies of Na0.5CoO2 under high pressure.JOURNAL OF PHYSICS-CONDENSED MATTER,19(42),425238.
MLA Sun, LL,et al."Equation of state and structural studies of Na0.5CoO2 under high pressure".JOURNAL OF PHYSICS-CONDENSED MATTER 19.42(2007):425238.
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