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| Phase Transition and Metallization of Orpiment by Raman Spectroscopy, Electrical Conductivity and Theoretical Calculation under High Pressure | |
| Kaixiang Liu; Lidong Dai; Heping Li; Haiying Hu; Linfei Yang; Chang Pu; Meiling Hong; Pengfei Liu | |
| 2019 | |
| 发表期刊 | Materials
 |
| 卷号 | 12期号:5页码:1-13 |
| 摘要 | The structural, vibrational, and electronic characteristics in orpiment were performed in the diamond anvil cell (DAC), combined with a series of experimental and theoretical research, including Raman spectroscopy, impedance spectroscopy, atomic force microscopy (AFM), high-resolution transmission electron microscopy (HRTEM), and fifirst-principles theoretical calculations. The isostructural phase transition at ~25.0 GPa was manifested as noticeable changes in the compressibility, bond lengths, and slope of the conductivity, as well as in a continuous change in the pressure dependence of the unit cell volume. Furthermore, a pressure-induced metallization occurred at
~42.0 GPa, accompanied by reversible electrical conductivity. We also determined the metallicity of orpiment at 45.0 GPa by fifirst-principles theoretical calculations, and the results were in good agreement with the results of the temperature-dependent conductivity measurements. The HRTEM and AFM images of the recovered sample confifirmed that orpiment remains in the crystalline phase with an intact layered structure and available crystal-shaped clusters. These high-pressure behaviors of orpiment present some crucial information on the structural phase transition, metallization, amorphization and superconductivity for the A2B3-type of engineering materials at high pressure. |
| 关键词 | High Pressure Diamond Anvil Cell Raman Spectroscopy Electrical Conductivity Phase Transition Pressure-induced Metallization |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.gyig.ac.cn/handle/42920512-1/10246 |
| 专题 | 地球内部物质高温高压实验室 |
| 作者单位 | 1.Key Laboratory of High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China 2.University of Chinese Academy of Sciences, Beijing 100039, China 3.State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China |
| 推荐引用方式 GB/T 7714 | Kaixiang Liu;Lidong Dai;Heping Li;Haiying Hu;Linfei Yang;Chang Pu;Meiling Hong;Pengfei Liu. Phase Transition and Metallization of Orpiment by Raman Spectroscopy, Electrical Conductivity and Theoretical Calculation under High Pressure[J]. Materials,2019,12(5):1-13. |
| APA | Kaixiang Liu;Lidong Dai;Heping Li;Haiying Hu;Linfei Yang;Chang Pu;Meiling Hong;Pengfei Liu.(2019).Phase Transition and Metallization of Orpiment by Raman Spectroscopy, Electrical Conductivity and Theoretical Calculation under High Pressure.Materials,12(5),1-13. |
| MLA | Kaixiang Liu;Lidong Dai;Heping Li;Haiying Hu;Linfei Yang;Chang Pu;Meiling Hong;Pengfei Liu."Phase Transition and Metallization of Orpiment by Raman Spectroscopy, Electrical Conductivity and Theoretical Calculation under High Pressure".Materials 12.5(2019):1-13. |
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| Phase Transition and（4404KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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