A THEORETICAL INVESTIGATION ON THE MAGNETOOPTICAL SPECTRA OF CE-SUBSTITUTED YTTRIUM-ALUMINUM-GARNET
文献类型：期刊论文
| 作者 | XU, Y ; YANG, JH ; ZHANG, GY |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 1995 |
| 卷号 | 7期号:30页码:6151 |
| 关键词 | EXCITED-STATE-ABSORPTION FARADAY-ROTATION IRON-GARNET YIG ENHANCEMENT |
| ISSN号 | 0953-8984 |
| 通讯作者 | XU, Y: CHINA CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA. |
| 中文摘要 | Calculations of the Faraday rotation and ellipticity spectra at photon energies between 1.6 and 4.0 eV (wavelengths between 775 and 310 nm) resulting from Ce3+ ions in Ce-substituted yttrium aluminium garnets (YAG:Ce) based on the quantum theory are presented. The Faraday effect contributed by the Ce3+ ions is caused mainly by the intra-ionic electrical dipole transitions between the 4f and 5d configurations. The Faraday effect of the Ce3+ ions in both the diamagnetic YAG and the ferrimagnetic yttrium iron garnet (YIG) crystals has a paramagnetic spectral shape, but the resonance frequencies of YAG:Ce are at 2.76 and 3.7 eV, which are obviously higher than those of YIC:Ce. This difference can be explained by the fact that the crystal field acting upon the rare-earth ions in garnets depends strongly on the nature of the next-nearest neighbours. The differences between the transition intensities for the right- and left-handed circularly polarized light from both the lowest and the second crystal-field (CF)-split 5d levels to the ground state are negative. Therefore the Faraday rotation spectrum contributed by the Ce3+ ions in YAG has a wave-like shape in the energy region considered. However, for YIG:Ce, the difference between the transition intensities for the right- and left-handed circularly polarized light from the second cp-split 5d level to the ground state is positive. So the corresponding spectrum for YIG:Ce has a different shape. The calculated results are in good agreement with experiment. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33311]  |
| 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 | XU, Y,YANG, JH,ZHANG, GY. A THEORETICAL INVESTIGATION ON THE MAGNETOOPTICAL SPECTRA OF CE-SUBSTITUTED YTTRIUM-ALUMINUM-GARNET[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1995,7(30):6151. |
| APA | XU, Y,YANG, JH,&ZHANG, GY.(1995).A THEORETICAL INVESTIGATION ON THE MAGNETOOPTICAL SPECTRA OF CE-SUBSTITUTED YTTRIUM-ALUMINUM-GARNET.JOURNAL OF PHYSICS-CONDENSED MATTER,7(30),6151. |
| MLA | XU, Y,et al."A THEORETICAL INVESTIGATION ON THE MAGNETOOPTICAL SPECTRA OF CE-SUBSTITUTED YTTRIUM-ALUMINUM-GARNET".JOURNAL OF PHYSICS-CONDENSED MATTER 7.30(1995):6151. |
入库方式： OAI收割
来源：物理研究所
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