The Dynamical Jahn-Teller Effect in Localized Systems (Modern Problems in Condensed Matter Sciences, Volume 7)
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The Dynamical Jahn-Teller Effect in Localized Systems (Modern Problems in Condensed Matter Sciences, Volume 7)

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Published by Elsevier Science Ltd .
Written in English

Book details:

The Physical Object
Number of Pages918
ID Numbers
Open LibraryOL7532945M
ISBN 100444867791
ISBN 109780444867797

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ISBN: OCLC Number: Description: x, Seiten: Diagramme. Contents: Foreword. 1. Introduction (Yu.E. Perlin and M. Wagner). The Jahn–Teller effect (JT effect or JTE) is an important mechanism of spontaneous symmetry breaking in molecular and solid-state systems which has far-reaching consequences in different fields, and is responsible for a variety of phenomena in spectroscopy, stereochemistry, crystal chemistry, molecular and solid-state physics, and materials science.   Here we present evidence for the dynamic Jahn–Teller effect as the source of the dramatic change in electronic structure occurring during the transition from the metallic to the localized state Cited by: EPR studies of pure and doped (in an isostructural diamagnetic zinc lattice) polycrystalline [Cu(di(amH)sar)](NO 3) 4 over a wide range of temperature (7– K) show that both undergo a transition from dynamic to static Jahn-Teller distortions. The spectra were simulated to get the g- and transition temperature for the pure polycrystalline sample is ⩽ K and for .

  T.K. Kundu and P.T. Manoharan, to be published. mH)sar)](NO3)4 exhibits a cooperative Jahn-Teller effect with exchange interactions in the pure lattice with dynamic to static transition tempera- ture around K while in the doped lattice it exhibits a localized Jahn-Teller effect with the dy- namic to static transition occurring at a higher. This paper surveys the present understanding of the Jahn‐Teller effect and includes a historical review of the principal advances. The important role of the dynamic Jahn‐Teller effect in many experimental phenomena has only recently been recognized, and the predicted effects have now been observed in a large number of systems. The Fulton–Gouterman transformation is applied to the dynamical E–e Jahn–Teller problem. This approach leads to an unconventional way of visualizing the exact eigensolutions of the problem. It turn. Sloncewski, J.C. () Theory of the Dynamical Jahn-Teller Effect. Physical Review, ,

Providing a general approach to understanding the properties of molecules and crystals and their origins, the Jahn-Teller effect is a fascinating phenomena in modern physics and chemistry. Its effect inspired one of the most important recent scientific discoveries--the concept of high-temperature superconductivity. Their degeneracy is due to the fact that such a system has spherical symmetry: Rotation about any axis through the nucleus leaves the Hamiltonian invariant, while transforming the p functions into each other. Such threefold degeneracy persists even if the free atom is in an external field of cubic symmetry created, for example, by six point. H. G. Reik, in The Dynamical Jahn-Teller Effect in Localized Systems, edited by Yu. E. Perlin and M. Wagner (North-Holland, Amsterdam, ). Google Scholar; G. Frobenius and I. Schur, Sitzungsberichteder Königlich Prev βischen Academie der Wissenshoften zu Berlin, (); Google Scholar. Group-Theoretical Analysis of Jahn–Teller Systems. Martin Breza. Pages The Jahn-Teller effect continues to be a paradigm for structural instabilities and dynamical processes in molecules and in the condensed phase. Among the many important newer developments in the field one should mention cooperative phenomena in crystals, the.