Multiphonon optical bands of Cr3+ ion in sulphide spinels: a pseudo Jahn-Teller model

A Al Haroun; Leonid L. Culiuc; V Y Mirovitskii; A N Nateprov; A V Palii; V E Tezlevan; B S Tsukerblat

doi:10.1117/12.475341

12 July 2002 Multiphonon optical bands of Cr³⁺ion in sulphide spinels: a pseudo Jahn-Teller model

A Al Haroun, Leonid L. Culiuc, V Y Mirovitskii, A N Nateprov, A V Palii, V E Tezlevan, B S Tsukerblat

Proceedings Volume 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions; (2002) https://doi.org/10.1117/12.475341
Event: XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, 2001, Kazan, Russian Federation

Abstract

In this article we report the adiabatic and dynamic solutions of the pseudo Jahn-Teller (JT) problem in the orbital triplet ⁴T₂(t²₂e) of Cr³⁺ ion resulting from the combined effect of tetragonal (E) vibrations and trigonal crysatl field in sulphide spinels lattice. We discuss the general properties of the adiabatic surfaces that give a clear qualitative insight on the main features of the optical bands. The shapes of the absorption bands are calculated on basis of the quantum-mechanical solution of the dynamic pseudo JT problem taking into account the effective electric-dipole moment involving odd- parity crystal field potential. Pseudo JT (⁴A₁ + ⁴E) (direct product) e interaction is shown to produce a complicated structure of the multiphoton optical bands and leads to a specific polarization effect. Calculated shape function for the U-band absorption proves to be in a good agreement with the excitation spectrum of (alpha) - ZnAl₂S₄ tiospinel doped with chromium ions, the experimentally detected peculiarities of the structure of this band are shown to be an evidence of strong pseudo JT interaction in the excited state.

Citation Download Citation

A Al Haroun, Leonid L. Culiuc, V Y Mirovitskii, A N Nateprov, A V Palii, V E Tezlevan, and B S Tsukerblat "Multiphonon optical bands of Cr³⁺ion in sulphide spinels: a pseudo Jahn-Teller model", Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); https://doi.org/10.1117/12.475341

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available