| Energy spectrum of YAG : Cr3+ and thermal shifts of its R lines |
| D. P. Ma; J. R. Chen
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| 2005
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| 发表期刊 | Communications in Theoretical Physics
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| ISSN | 0253-6102
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| 卷号 | 44期号:1页码:165-170 |
| 摘要 | Traditional ligand-field theory has to be improved by taking into account both "pure electronic" contribution and electron-phonon interaction one (including lattice-vibrational relaxation energy). By means of improved ligand-field theory, R-1, R-2, R-3', R-2', and R-1' lines, U band, ground-state zero-field-splitting (GSZFS) and ground-state g factors as well as thermal shifts of R-1 line and R-2 line of yAG:Cr3+ have been calculated. The results are in very good agreement with the experimental data. In contrast with ruby, the octahedron of ligand oxygen ions surrounding the central Cr3+ ion in YAG:Cr is compressed along the [111] direction. Thus, for YAG:Cr3+ and ruby, the splitting of t(2)(3) (4)A(2) (or t(2)(3) E-2) has opposite order, and the trigonal-field parameters of the two crystals have opposite signs. In thermal shifts of R-1 and R-2 lines of YAG:Cr3+, the temperature-dependent contributions due to EPI are dominant. |
| 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
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| 关键词 | Improved Ligand-field Theory
Electron-phonon Interaction
Stokes Shift
Energy Spectrum
Thermal Shift
g Factor
Yttrium-aluminum-garnet
Pressure
Cr3
Temperature
State
Ions
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/34973
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
D. P. Ma,J. R. Chen. Energy spectrum of YAG : Cr3+ and thermal shifts of its R lines[J]. Communications in Theoretical Physics,2005,44(1):165-170.
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| APA |
D. P. Ma,&J. R. Chen.(2005).Energy spectrum of YAG : Cr3+ and thermal shifts of its R lines.Communications in Theoretical Physics,44(1),165-170.
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| MLA |
D. P. Ma,et al."Energy spectrum of YAG : Cr3+ and thermal shifts of its R lines".Communications in Theoretical Physics 44.1(2005):165-170.
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