๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Jahn-Teller effect in crystals: Optical response function and vibronic states

โœ Scribed by Alberto Barchielli

Book ID
103892447
Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
867 KB
Volume
110
Category
Article
ISSN
0378-4371

No coin nor oath required. For personal study only.

โœฆ Synopsis

We present a method for evaluating the optical spectrum of a Jahn-Teller centre in a crystal. We are able to obtain an approximated, but not perturbative, expression for the optical response function of the system in the weak coupling case. All cases of electronic degeneracy are treated together. The general formulae giving the zero-phonon line and the one-and two-phonon bands are obtained in the two cases of Jahn-Teller interaction acting when the electron is in the ground or in an excited level. In particular, the contribution of the vibronic states as peaks in the one-phonon band is explicitly shown.

๐Ÿ“œ SIMILAR VOLUMES

The effect of vibrational perturbation o
The effect of vibrational perturbation on the vibronic structure in Jahn-Teller active states
โœ J. Itah; B. Katz; B. Scharf ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 593 KB

The vibronic structure superimposed on the benzene Rydberg transltron corrcspondmg to 3ctu(r) -+ 3s(alg) cxcitatlon nt I 1 eV has been studred ~pnctroscopicsIfy\_ The rcvcnfed structure is interpreted in terms of two Rydbcrg systems deriving from 3e2&r) -c 6pfqu) and 3e2,[a} 3 Sf(bru, blu, el,, cau)

The Jahn-Teller Effect in Layer Crystals
The Jahn-Teller Effect in Layer Crystals
โœ B. A. Lukiyanets; K. D. Tovstyuk; V. V. Boichuk; K. K. Danilevich-tovstyuk ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 296 KB

## Abstract The adibatic potential in the layer semiconductor GaSe is considered taking into account the Davydov splitting of the bands. It is shown that in the case of electronโ€”phonon interaction which is responsible for the Jahnโ€Teller pseudoeffect, distortions are possible either normal to layer