Temperature-dependent far-infrared properties of Bi12GeO20 single crystal
文献类型：期刊论文
| 作者 | Kamran, M ; Dai, YM ; Ma, JY ; Li, BH ; He, SK ; Zhang, WJ ; Zheng, XR ; Qiu, XG |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2009 |
| 卷号 | 18期号:10页码:4425 |
| 关键词 | BISMUTH GERMANIUM OXIDE BI12SIO20 CRYSTALS SPECTRA |
| ISSN号 | 1674-1056 |
| 通讯作者 | Qiu, XG (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Far-infrared reflectivity spectra of bismuth germanium oxide (Bi12GeO20) single crystals are measured from room temperature down to 10 K. All the reflectivity spectra are fitted to a complex dielectric function epsilon(omega) in the factorised form. Phonon modes at low frequency are found to develop upon decreasing temperature and gain considerable spectrum weight below 150 K. The temperature-dependent static dielectric constants are obtained from the Lyddane-Sachs-Teller relation based on the obtained oscillator parameters. The dielectric constants are found to increase upon decreasing temperature, which is attributed to the charge transfer among the ions in the unit cell with the temperature varying. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10674168]; Ministry of Science and Technology, China [2006CB601006, 2009CB930701] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44811]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kamran, M,Dai, YM,Ma, JY,et al. Temperature-dependent far-infrared properties of Bi12GeO20 single crystal[J]. CHINESE PHYSICS B,2009,18(10):4425. |
| APA | Kamran, M.,Dai, YM.,Ma, JY.,Li, BH.,He, SK.,...&Qiu, XG.(2009).Temperature-dependent far-infrared properties of Bi12GeO20 single crystal.CHINESE PHYSICS B,18(10),4425. |
| MLA | Kamran, M,et al."Temperature-dependent far-infrared properties of Bi12GeO20 single crystal".CHINESE PHYSICS B 18.10(2009):4425. |
入库方式： OAI收割
来源：物理研究所
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