The Goldstone theorem and the Jahn-Teller effect

Graph theory and the Jahn–Teller theorem

BY A. CEULEMANS1,*, E. LIJNEN1, P. W. FOWLER2, R. B. MALLION3 AND T. PISANSKI4 1Division of Quantum Chemistry and Physical Chemistry, Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, Heverlee 3001, Belgium 2Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK 3School of Physical Sciences, University of Kent, Canterbury CT2 7NH, UK 4Faculty of Mathematics and Physics...

Jahn - Teller Effect in Diamond - like Carbon

The Jahn-Teller effect used semi-theoretically to analyse UV-visible spectra of the diamond like-carbon films on Si substrates. By deconvolution of UV-visible absorption spectra of the typical films, different absorption lines found. For each sample, six lines which were related to V • by Jahn-Teller effect are distinguished. Our theoretical approach based on distortion of the V • as the conseq...

Jahn-Teller distortions and the supershell effect in metal nanowires.

A stability analysis of metal nanowires shows that a Jahn-Teller deformation breaking cylindrical symmetry can be energetically favorable, leading to stable nanowires with elliptic cross sections. The sequence of stable cylindrical and elliptical nanowires allows for a consistent interpretation of experimental conductance histograms for alkali metals, including both the electronic shell and sup...

Fullerene superconductivity and the dynamic jahn-teller effect.

Jahn-Teller effect in the augmented Hubbard model

We investigate the effects induced by the interplay of microscopic degrees of freedom. In many cases, one has to consider spin and orbital degeneracy to explain complex structures of magnetic and orbital order. Frequently, attention is focused on electronic correlations. We study how the interaction of electrons with lattice degrees of freedom modifies the pure electronic case. Because of orbit...