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

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	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
	D. P. Ma; J. P. Zhang
	2003
发表期刊	Communications in Theoretical Physics
ISSN	0253-6102
卷号	39 期号:5 页码:621-630
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.
部门归属	sichuan univ, dept appl sci, chengdu 610065, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;ma, dp (reprint author), sichuan univ, dept appl sci, chengdu 610065, peoples r china
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
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WOS记录号	WOS:000183434400024
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35956
专题	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.