Jahn-Teller vibronic coupling in CdSe doped with Cr2+ ions

S. I. Klokishner; B. S. Tsukerblat; O. S. Reu; A. V. Palii; S. M. Ostrovsky

doi:10.1016/j.optmat.2004.10.008

Jahn-Teller vibronic coupling in CdSe doped with Cr²⁺ ions

S. I. Klokishner, B. S. Tsukerblat, O. S. Reu, A. V. Palii, S. M. Ostrovsky

Department of Chemistry

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35 Scopus citations

Abstract

In this article we report the study of the vibronic Jahn-Teller interaction in CdSe crystals doped with Cr²⁺ ions. The vibronic coupling constants are evaluated in the framework of the exchange charge model of the crystal field accounting for the exchange and covalence effects. The calculations demonstrate the leading role of the trigonal vibrations for the ⁵T₂ term although the contribution of tetragonal modes is also important; the full symmetric and tetragonal vibrations for the ⁵E term significantly contribute to the formation of the optical band ⁵E ↔ ⁵T₂ for CdSe:Cr²⁺ system.

Original language	English
Pages (from-to)	1445-1450
Number of pages	6
Journal	Optical Materials
Volume	27
Issue number	8
DOIs	https://doi.org/10.1016/j.optmat.2004.10.008
State	Published - 1 Jan 2005

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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10.1016/j.optmat.2004.10.008

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title = "Jahn-Teller vibronic coupling in CdSe doped with Cr2+ ions",

abstract = "In this article we report the study of the vibronic Jahn-Teller interaction in CdSe crystals doped with Cr2+ ions. The vibronic coupling constants are evaluated in the framework of the exchange charge model of the crystal field accounting for the exchange and covalence effects. The calculations demonstrate the leading role of the trigonal vibrations for the 5T2 term although the contribution of tetragonal modes is also important; the full symmetric and tetragonal vibrations for the 5E term significantly contribute to the formation of the optical band 5E ↔ 5T2 for CdSe:Cr2+ system.",

author = "Klokishner, {S. I.} and Tsukerblat, {B. S.} and Reu, {O. S.} and Palii, {A. V.} and Ostrovsky, {S. M.}",

note = "Funding Information: Financial support of USA-Israel Binational Science Foundation (Proposal No. 2002409) is highly appreciated. S.I.K., O.S.R., A.V.P. and S.M.O. also thank the Supreme Council on Science and Technological Development of Moldova for the financial support (grant No. 4-013P).",

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doi = "10.1016/j.optmat.2004.10.008",

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T1 - Jahn-Teller vibronic coupling in CdSe doped with Cr2+ ions

AU - Klokishner, S. I.

AU - Tsukerblat, B. S.

AU - Reu, O. S.

AU - Palii, A. V.

AU - Ostrovsky, S. M.

N1 - Funding Information: Financial support of USA-Israel Binational Science Foundation (Proposal No. 2002409) is highly appreciated. S.I.K., O.S.R., A.V.P. and S.M.O. also thank the Supreme Council on Science and Technological Development of Moldova for the financial support (grant No. 4-013P).

PY - 2005/1/1

Y1 - 2005/1/1

N2 - In this article we report the study of the vibronic Jahn-Teller interaction in CdSe crystals doped with Cr2+ ions. The vibronic coupling constants are evaluated in the framework of the exchange charge model of the crystal field accounting for the exchange and covalence effects. The calculations demonstrate the leading role of the trigonal vibrations for the 5T2 term although the contribution of tetragonal modes is also important; the full symmetric and tetragonal vibrations for the 5E term significantly contribute to the formation of the optical band 5E ↔ 5T2 for CdSe:Cr2+ system.

AB - In this article we report the study of the vibronic Jahn-Teller interaction in CdSe crystals doped with Cr2+ ions. The vibronic coupling constants are evaluated in the framework of the exchange charge model of the crystal field accounting for the exchange and covalence effects. The calculations demonstrate the leading role of the trigonal vibrations for the 5T2 term although the contribution of tetragonal modes is also important; the full symmetric and tetragonal vibrations for the 5E term significantly contribute to the formation of the optical band 5E ↔ 5T2 for CdSe:Cr2+ system.

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DO - 10.1016/j.optmat.2004.10.008

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JO - Optical Materials

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ER -

Jahn-Teller vibronic coupling in CdSe doped with Cr²⁺ ions

Abstract

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