SEARCH Articles Figures Tables Approach to Cooperative Jahn-Teller Effect in Crystals with Strong Intra-site Vibronic Coupling Jahn-Teller Jahn-Teller coupling Jahn-Teller effect vibronic coupling Jahn-Teller effect, linear vibronic coupling Vibron Vibronic coupling Vibronic couplings pseudo-Jahn-Teller coupling Vibronics Vibrons