Effective Hamiltonian approach to doubly degenerate electronic states - I — Theory and applications to E ⊗ (b1+b2) and related Jahn-Teller systems
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Eur. Phys. J. D, 33 3 (2005) 357-386
Published online: 12 May 2005
DOI: 10.1140/epjd/e2005-00066-0