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Phonon Polaritons in the Presence of a Magnetic Field
Author(s) -
Regiński K.
Publication year - 1983
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.2221180215
Subject(s) - faraday effect , polariton , magnetic field , condensed matter physics , physics , dispersion relation , faraday rotator , refraction , faraday cage , magneto optic effect , diatomic molecule , phonon , rotation (mathematics) , dispersion (optics) , field (mathematics) , ionic bonding , ion , quantum mechanics , mathematics , geometry , molecule , pure mathematics
The problem of propagation of phonon polaritons in the presence of an external magnetic field is investigated on the basis of equations of motion derived previously. First the dispersion relations for diatomic ionic crystals in the absence of a magnetic field are derived. Then the indices of refraction of right and left circularly polarized waves are found in the case of the Faraday configuration of the system. The Faraday rotation as a function of frequency is determined. Numerical calculations are performed for NaI.