منابع مشابه
New way of describing static and dynamic deformations of the Jahn-Teller type in ring molecules.
A new method is presented to describe deformations of an N-membered planar ring (N-ring) molecule in terms of deformation vectors that can be expressed by a set of 2N-3 deformation amplitudes and phase angles. The deformation coordinates are directly derived from the normal vibrational modes of the N-ring and referenced to a regular polygon (N-gon) of unit length. They extend the conceptual app...
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It is shown that the layered antiferromagnetic order in stoechiometric LaMnO3 cannot be understood purely from electronic interactions. On the contrary, it mainly results from strong cooperative Jahn-Teller deformation. Those involve a compression of the Mn−O octahedron along the c−axis (mode Q3 < 0), while alternate Jahn-Teller deformations occur in the ab−plane (mode Q2). These deformations s...
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The results of calculations on static Jahn-Teller ground state splittings inicosahedral C 60 ðN 1⁄4 1; . . . ; 4Þ fullerene anions with different types of electron-electron interaction are presented. Multielectron states of anions are determined within a quasy-p-electronic model configuration interaction (CI) method for two active spaces of t1u and t1uþ t1g molecular orbitals. Electron–lattice ...
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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...
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ژورنال
عنوان ژورنال: Zeitschrift f�r Physik D Atoms, Molecules and Clusters
سال: 1997
ISSN: 0178-7683,1431-5866
DOI: 10.1007/s004600050215