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Jahn‐Teller Effect in Narrow‐Band Cubic Crystals with E‐Type Ground State
Author(s) -
Mironov V. S.,
Ionova G. V.,
Groznov I. N.,
Ionov S. P.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221060127
Subject(s) - jahn–teller effect , condensed matter physics , ground state , cubic crystal system , ion , crystal (programming language) , charge ordering , electronic band structure , charge (physics) , electron , perovskite (structure) , electronic structure , materials science , physics , chemistry , crystallography , atomic physics , quantum mechanics , computer science , programming language
The cooperative Jahn‐Teller effect in narrow‐band three‐dimensional crystals of cubic symmetry perovskite (AMX 3 ) or ReO 3 ‐type structure is considered. A transition metal ion with E ground state in a crystal field of cubic symmetry is treated. The number of band electrons per ion ranges between 0 and 4. The electronic correlations are neglected. The static Jahn‐Teller distortions of the crystal at T equals; 0 K as well as the electronic structure and possible types of orbital ordering are determined. The cooperative Jahn‐Teller effect in band crystals is shown to lead to charge order (besides orbital order). This orbital‐charge ordering is not connected with electronic correlation.