V
Victor Z. Polinger
Researcher at Russian Academy of Sciences
Publications - 11
Citations - 784
Victor Z. Polinger is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Vibronic coupling & Jahn–Teller effect. The author has an hindex of 5, co-authored 11 publications receiving 747 citations.
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Vibronic interactions in molecules and crystals
TL;DR: Vibronic interaction effects constitute a new field of investigation in the physics and chemistry of molecules and crystals that combines all the phenomena and laws originating from the mixing of different electronic states by nuclear displacements This field is based on a new concept which goes beyond the separate descriptions of electronic and nuclear motions in the adiabatic approximation as mentioned in this paper.
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On the origin of dynamic instability of molecular systems
TL;DR: In this paper, the vibronic origin of dynamic instability of molecular systems considered earlier, is given a more complete and rigorous treatment, and it is shown that the nonvibronic contribution to the curvature of the adiabatic potential arising due to nuclear displacements under fixed electronic density distribution, is always positive, and hence the only reason for dynamic instability is the pseudo Jahn-Teller effect.
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The Jahn-Teller effect in icosahedral molecules and complexes
TL;DR: In this article, the adiabatic potential surface for icosahedral systems having three-, four-and fivefold degenerate orbital states interacting with five-fold degenerates vibrations (T-v, U-v and V-v problems) is investigated.
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Multiple lines of conical intersections and nondegenerate ground state in T⊗t2 Jahn–Teller systems
TL;DR: In this article, the T⊗t2 Jahn-Teller problem with linear and quadratic vibronic coupling including a fourth-order term was investigated, and the energy level of the ground vibronic state was shown to intersect the next A level with increasing g, thus realizing the non-degenerate ground state at sufficiently large g values.
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Perovskite Crystals: Unique Pseudo-Jahn–Teller Origin of Ferroelectricity, Multiferroicity, Permittivity, Flexoelectricity, and Polar Nanoregions
TL;DR: In this article, the authors show that the local pseudo-Jahn-Teller effect (PJTE) in transition metal B ion center of ABO3 perovskite crystals, notably BaTiO3, is the basis of all their main properties.