Energy spectrum of La3Lu2Ga3O12 : Cr3+ and its pressure-induced R-line-shift reversal

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	Energy spectrum of La3Lu2Ga3O12 : Cr3+ and its pressure-induced R-line-shift reversal
	D. P. Ma ; J. R. Chen
刊名	Communications in Theoretical Physics
	2005
卷号	44 期号:6 页码:1103-1114
关键词	pressure-induced reversal of R-1-line shift low-high crystal-field transition electron-phonon interaction mixing of base-wavefunctions laser crystal gsgg-cr3+ theoretical calculations gallium garnet r-1 line ruby spectroscopy temperature cr3+
ISSN号	0253-6102
中文摘要	By means of both the theory for pressure-induced shifts (PS) of energy spectra and the theory for shifts of energy spectra due to electron-phonon interaction (EPI), the normal-pressure energy spectra of alpha and beta centers of Cr3+ ions for LLGG:Cr3+ and the PSs of R-1 lines and U band of these centers have been calculated at 10 K, respectively. total calculated results are in very good agreement with the experimental data. For LLGG:Cr, the pressure induced low-high crystal-field transition and the reversal of R-1 -line PS take place. The pressure-dependent variation of R-mix(el) (E-2 -T-4(2)) [mixing-degree of \t(2)(2) (T-3(1))e(4)T(2)) and \t(2)(32) E) base-wavefunctions in the wavefunction of R-1 state without EPI] plays a key role for the reversal of R-1 -line PS. The behavior of the pure electronic PS of R-1 line is quite different from that of the PS of R-1 line due to EPI. It is the combined effect of them that gives rise to the total PS of R, line. The comparison between R-1 -line PS's of GSGG:Cr3+ and LLGG:Cr3+ has been made. It is found that a peak of R-1-line PS appears at R-mix(el) (E-2 - T-4(2)) approximate to 0.08.
原文出处	://WOS:000234533600031
公开日期	2012-05-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/40031]
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. R. Chen. Energy spectrum of La3Lu2Ga3O12 : Cr3+ and its pressure-induced R-line-shift reversal[J]. Communications in Theoretical Physics,2005,44(6):1103-1114.
APA	D. P. Ma,&J. R. Chen.(2005).Energy spectrum of La3Lu2Ga3O12 : Cr3+ and its pressure-induced R-line-shift reversal.Communications in Theoretical Physics,44(6),1103-1114.
MLA	D. P. Ma,et al."Energy spectrum of La3Lu2Ga3O12 : Cr3+ and its pressure-induced R-line-shift reversal".Communications in Theoretical Physics 44.6(2005):1103-1114.