Correlated High-Pressure Phase Sequence of VO2 under Strong Compression
文献类型：期刊论文
| 作者 | Liu, HZ; Xie, SY; Wang, LH; Liu, FY; Li, XB ; Bai, LG; Prakapenka, VB; Cai, ZH; Mao, HK; Zhang, SB
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| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 9期号:9页码:2388-2393 |
| ISSN号 | 1948-7185 |
| DOI | 10.1021/acs.jpclett.8b00771 |
| 文献子类 | Article |
| 英文摘要 | Understanding how the structures of a crystal behave under compression is a fundamental issue both for condensed matter physics and for geoscience. Traditional description of a crystal as the stacking of a unit cell with special symmetry has gained much success on the analysis of physical properties. Unfortunately, it is hard to reveal the relationship between the compressed phases. Taking the family of metal dioxides (MO2) as an example, the structural evolution, subject to fixed chemical formula and highly confined space, often appears as a set of random and uncorrelated events. Here we provide an alternative way to treat the crystal as the stacking of the coordination polyhedron and then discover a unified structure transition pattern, in our case VO2. X-ray diffraction (XRD) experiments and first-principles calculations show that the coordination increase happens only at one apex of the V-centered octahedron in an orderly fashion, leaving the base plane and the other apex topologically intact. The polyhedron evolves toward increasing their sharing, indicating a general rule for the chemical bonds of MO2 to give away the ionicity in exchange for covalency under pressure. |
| WOS关键词 | MULTIMEGABAR PRESSURES ; MOTT-HUBBARD ; PREDICTION ; NUMBER |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000431724400043 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285922]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_粒子天体物理中心 |
| 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, HZ,Xie, SY,Wang, LH,et al. Correlated High-Pressure Phase Sequence of VO2 under Strong Compression[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2018,9(9):2388-2393. |
| APA | Liu, HZ.,Xie, SY.,Wang, LH.,Liu, FY.,Li, XB.,...&白利刚.(2018).Correlated High-Pressure Phase Sequence of VO2 under Strong Compression.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,9(9),2388-2393. |
| MLA | Liu, HZ,et al."Correlated High-Pressure Phase Sequence of VO2 under Strong Compression".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 9.9(2018):2388-2393. |
入库方式： OAI收割
来源：高能物理研究所
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