Theory of side‐bands in a cooperative Jahn‐Teller material | Zendy

Gehring G. A. | Zendy; Laugsch J. | Zendy

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Theory of side‐bands in a cooperative Jahn‐Teller material

Author(s) -

Gehring G. A.,

Laugsch J.

Publication year - 1976

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.2220780120

Subject(s) - brillouin zone , diagonal , jahn–teller effect , ion , phonon , rare earth , condensed matter physics , tight binding , phase transition , crystal (programming language) , phase (matter) , physics , molecular physics , materials science , chemistry , quantum mechanics , mineralogy , electronic structure , geometry , mathematics , computer science , programming language

The theory of optical side‐bands is developed for a crystal with a cooperative Jahn‐Teller phase transition containing rare‐earth ions. A tight binding scheme is used to describe the rare‐earth energy levels over the whole Brillouin zone. The possible two‐ion couplings which can give rise to side‐bands are discussed; these include the diagonal and off‐diagonal contributions of the virtual phonon interaction.

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