Manifestation of vibronic interaction in the fine structure of Cr3+ energy levels in laser crystal LiCaAlF6:Cr3+

C. N. Avram; M. G. Brik

doi:10.1016/S0022-2313(02)00499-4

Manifestation of vibronic interaction in the fine structure of Cr³⁺ energy levels in laser crystal LiCaAlF₆:Cr³⁺

C. N. Avram^*
, M. G. Brik

^*Corresponding author for this work

West University of Timisoara
Weizmann Institute of Science

Research output: Contribution to journal › Conference article › peer-review

9 Citations (Scopus)

Abstract

Theoretical study of the fine structure of the ⁴T_2g level of Cr³⁺ ions in LiCaAlF₆ is carried out. The spin-orbit splitting of the ⁴T_2g term in the intermediate field and the vibronic coupling with the e_g local mode of crystal lattice is found. The energies of the spin-orbit components of ⁴T_2g are found by means of diagonalization of the Eisenstein matrices using the parameters (Dq,B,C,ζ) corresponding to zero phonon line of ⁴T_2g→⁴A_2g emission. Dynamical Jahn-Teller effect in ⁴T_2g state, which quenches the total splitting of ⁴T_2g state by Ham effect, is taken into account. Using the Ham reduction factor, the Jahn-Teller stabilization energy has been calculated.

Original language	English
Pages (from-to)	81-84
Number of pages	4
Journal	Journal of Luminescence
Volume	102-103
Issue number	SPEC
DOIs	https://doi.org/10.1016/S0022-2313(02)00499-4
Publication status	Published - May 2003
Externally published	Yes
Event	Proceedings of the 2002 International Conference on Luminescence - Budapest, Hungary Duration: 24 Aug 2002 → 29 Aug 2002

Keywords

Ham effect
Jahn-Teller effect
LiCaAlF:Cr
LiCaAlF:Cr
Spi n-orbit interaction

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10.1016/S0022-2313(02)00499-4

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@article{ce0b726d893c4dafa0d11f6e2c1ddfe7,

title = "Manifestation of vibronic interaction in the fine structure of Cr3+ energy levels in laser crystal LiCaAlF6:Cr3+ ",

abstract = "Theoretical study of the fine structure of the 4T2g level of Cr3+ ions in LiCaAlF6 is carried out. The spin-orbit splitting of the 4T2g term in the intermediate field and the vibronic coupling with the eg local mode of crystal lattice is found. The energies of the spin-orbit components of 4T2g are found by means of diagonalization of the Eisenstein matrices using the parameters (Dq,B,C,ζ) corresponding to zero phonon line of 4T2g→4A2g emission. Dynamical Jahn-Teller effect in 4T2g state, which quenches the total splitting of 4T2g state by Ham effect, is taken into account. Using the Ham reduction factor, the Jahn-Teller stabilization energy has been calculated.",

keywords = "Ham effect, Jahn-Teller effect, LiCaAlF:Cr, LiCaAlF:Cr, Spi n-orbit interaction",

author = "Avram, \{C. N.\} and Brik, \{M. G.\}",

year = "2003",

month = may,

doi = "10.1016/S0022-2313(02)00499-4",

language = "English",

volume = "102-103",

pages = "81--84",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

number = "SPEC",

note = "Proceedings of the 2002 International Conference on Luminescence ; Conference date: 24-08-2002 Through 29-08-2002",

}

TY - JOUR

T1 - Manifestation of vibronic interaction in the fine structure of Cr3+ energy levels in laser crystal LiCaAlF6:Cr3+

AU - Avram, C. N.

AU - Brik, M. G.

PY - 2003/5

Y1 - 2003/5

N2 - Theoretical study of the fine structure of the 4T2g level of Cr3+ ions in LiCaAlF6 is carried out. The spin-orbit splitting of the 4T2g term in the intermediate field and the vibronic coupling with the eg local mode of crystal lattice is found. The energies of the spin-orbit components of 4T2g are found by means of diagonalization of the Eisenstein matrices using the parameters (Dq,B,C,ζ) corresponding to zero phonon line of 4T2g→4A2g emission. Dynamical Jahn-Teller effect in 4T2g state, which quenches the total splitting of 4T2g state by Ham effect, is taken into account. Using the Ham reduction factor, the Jahn-Teller stabilization energy has been calculated.

AB - Theoretical study of the fine structure of the 4T2g level of Cr3+ ions in LiCaAlF6 is carried out. The spin-orbit splitting of the 4T2g term in the intermediate field and the vibronic coupling with the eg local mode of crystal lattice is found. The energies of the spin-orbit components of 4T2g are found by means of diagonalization of the Eisenstein matrices using the parameters (Dq,B,C,ζ) corresponding to zero phonon line of 4T2g→4A2g emission. Dynamical Jahn-Teller effect in 4T2g state, which quenches the total splitting of 4T2g state by Ham effect, is taken into account. Using the Ham reduction factor, the Jahn-Teller stabilization energy has been calculated.

KW - Ham effect

KW - Jahn-Teller effect

KW - LiCaAlF:Cr

KW - Spi n-orbit interaction

UR - https://www.scopus.com/pages/publications/0037402251

U2 - 10.1016/S0022-2313(02)00499-4

DO - 10.1016/S0022-2313(02)00499-4

M3 - Conference article

AN - SCOPUS:0037402251

SN - 0022-2313

VL - 102-103

SP - 81

EP - 84

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - SPEC

T2 - Proceedings of the 2002 International Conference on Luminescence

Y2 - 24 August 2002 through 29 August 2002

ER -

Manifestation of vibronic interaction in the fine structure of Cr³⁺ energy levels in laser crystal LiCaAlF₆:Cr³⁺

Abstract

Keywords

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