Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ III: Pressure-induced shift of R-1 line at 70 K

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	Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ III: Pressure-induced shift of R-1 line at 70 K
	D. P. Ma; J. P. Zhang
	2003
发表期刊	Communications in Theoretical Physics
ISSN	0253-6102
卷号	39 期号:4 页码:493-500
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 of GSGG:Cr3+ at 70 K have been calculated, respectively. Their physical origins have been revealed. It is found that the admixture of \t(2)(2)(T-3(1))e(4)T(2)) and \t(2)(32) E) base-wavefunctions in the wavefunctions of R-1 level of GSGG: Cr3+ at 70 K is remarkable under the normal pressure, and the degree of the admixture rapidly decreases with increasing pressure. The change of the degree of the admixture with the pressure plays a key role for not only the pure electronic PS of R-1 line but also the PS of R-1 line due to EPI. The detailed calculations and analyses show that the pressure-dependent behaviors of the pure electronic PS of R, line and the PS of R-1 line due to EPI are quite different. It is the combined effect of them that gives rise to the total PS of R, line, which has satisfactorily explained the experimental data (including a reversal of PS of R-1 line). In contributions to PS of R-1 line due to EPI at 70 K, the temperature-independent contribution is much larger than the temperature-dependent contribution. The former results from the interaction between the zero-point vibration of the lattice and localized electronic state.
部门归属	sichuan univ, dept appl phys, 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 phys, chengdu 610065, peoples r china
关键词	High-pressure Effect Spin-orbit Interaction Electron-phonon Interaction d Orbital Coupling Between t(2)(2)(T-3(1))e(4)t(2) And t(2)(3)(2)e Tunable Laser Crystal Temperature
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WOS记录号	WOS:000182441900023
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/321006/35957
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+ III: Pressure-induced shift of R-1 line at 70 K[J]. Communications in Theoretical Physics,2003,39(4):493-500.
APA	D. P. Ma,&J. P. Zhang.(2003).Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ III: Pressure-induced shift of R-1 line at 70 K.Communications in Theoretical Physics,39(4),493-500.
MLA	D. P. Ma,et al."Pressure effects on spectra of tunable laser crystal GSGG : Cr3+ III: Pressure-induced shift of R-1 line at 70 K".Communications in Theoretical Physics 39.4(2003):493-500.