منابع مشابه
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...
متن کاملPolarons and Solitons in Jahn-Teller Systems
Using a semiclassical continuum model of an electron in a deformable molecular crystal, some properties of multicomponent generalizations of the polaron–“vector polarons”– are elucidated. Analytical solutions for the case of two electronic bands coupled to two vibrational modes are given in detail. Within the model considered, the vector polaron can be classified by its wavefunction into severa...
متن کاملInverse Jahn-Teller transition in bimetallic oxalates.
Because of the competition between the spin-orbit coupling and the Jahn-Teller (JT) energies in Fe(II)Fe(III) bimetallic oxalates, we theoretically predict that an undistorted phase with C3 symmetry about each Fe site may be recovered at low temperatures. Both lower and upper JT transitions bracketing the ferrimagnetic transition temperature Tc are predicted for compounds that exhibit magnetic ...
متن کاملExperimental evidence of a dynamic Jahn - Teller effect in C
S. E. Canton, 2, ∗ A. J. Yencha, E. Kukk, J. D. Bozek, M. C. A. Lopes, G. Snell, and N. Berrah Department of Physics, Western Michigan University, Kalamazoo MI 49008 Lawrence Berkeley National Laboratory, ALS, University of California, Berkeley CA 94720 Department of Chemistry, State University of New-York at Albany, Albany, NY 12222 Department of Physical Sciences, Oulu University, Linnanmaa, ...
متن کاملThe Jahn-teller Instability with Accidental Degeneracy
The Jahn-Teller theorem predicts that orbitally degenerate complexes in solids can lower their energy by a distortion which lowers their symmetry. Exact degeneracy is not necessary for this instability; usually it suffices if the actual separation of the energy levels involved is less than the energy reduction which would result if they were exactly degenerate. We discuss various cases of accid...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2001
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.64.026216