Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ IV: Pressure-induced shifts of R-1 line, R-2 line, and U band at 300 K
文献类型：期刊论文
| 作者 | D. P. Ma ; J. P. Zhang |
| 刊名 | Communications in Theoretical Physics
 |
| 出版日期 | 2003 |
| 卷号 | 39期号:5页码:621-630 |
| 关键词 | high-pressure effect spin-orbit interaction electron-phonon interaction d orbital coupling between t(2)(2)(3T(1))e(4)T(2) and t(2)(32)E tunable laser crystal theoretical calculations temperature-dependence thermal broadenings garnet crystals cr3+ ions r-line cr-3+ luminescence ruby spectroscopy |
| ISSN号 | 0253-6102 |
| 中文摘要 | By means of both a theory for pressure-induced shifts (PS) of energy spectra and a theory for shifts of energy spectra due to electron-phonon interaction (EPI), the 'pure electronic' PS and the PS due to EPI of R-1 line, R-2 line, and U band of GSGG:Cr3+ at 300 K have been calculated, respectively. The calculated results are in good agreement with all the experimental data. Their physical origins have also been explained. It is found that the mixing-of degree \t(2)(2)(T-3(1))e(4)T(2)> and \t(2)(3) 2E> base-wavefunctions in the wavefunctions of R-1 level of GSGG:Cr3+ at 300 K is remarkable under normal pressure, and the mixing-degree rapidly decreases with increasing pressure. The change of the mixing-degree with pressure plays a key role not only for the 'pure electronic' PS of R-1 line and R-2 line but also the PS of R-1 line and R-2 line due to EPI. The pressure-dependent behaviors of the 'pure electronic' PS of R-1 line (or R-2 line) and the PS Of R-1 line (or R-2 line) due to EPI are quite different. It is the combined effect of them that gives rise to the total PS of R-1 line (or R-2 line). In the range of about 15 kbar similar to 45 kbar, the mergence and/or order-reversal between t(2)(2)(T-3(1))e(4)T(2) levels and t(2)(32)T(1) levels take place, which cause the fluctuation of the rate of PS for t(2)(2)(T-3(1))e(4)T(2) (or t(2)(3) T-2(1)) with pressure. At 300 K, both the temperature-dependent contribution to R-1 line (or R-2 line or U band) from EPI and the temperature-independent one are important. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35956]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | D. P. Ma,J. P. Zhang. Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ IV: Pressure-induced shifts of R-1 line, R-2 line, and U band at 300 K[J]. Communications in Theoretical Physics,2003,39(5):621-630. |
| APA | D. P. Ma,&J. P. Zhang.(2003).Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ IV: Pressure-induced shifts of R-1 line, R-2 line, and U band at 300 K.Communications in Theoretical Physics,39(5),621-630. |
| MLA | D. P. Ma,et al."Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ IV: Pressure-induced shifts of R-1 line, R-2 line, and U band at 300 K".Communications in Theoretical Physics 39.5(2003):621-630. |
入库方式： OAI收割
来源：金属研究所
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