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The Spectrum of Optical Absorption by Mott Excitons in an Electric Field
Author(s) -
Monozon B. S.,
Seysyan R. P.,
Shelekhin Yu. L.
Publication year - 1972
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.2220540237
Subject(s) - electric field , exciton , absorption spectroscopy , coulomb , field (mathematics) , absorption (acoustics) , physics , optical field , series (stratigraphy) , condensed matter physics , spectrum (functional analysis) , atomic physics , optics , quantum mechanics , electron , mathematics , paleontology , pure mathematics , biology
The wave functions of a Coulomb particle in a weak uniform electric field are obtained by the method of reference problems. Expressions are given for polarized light absorption coefficients for the yellow excitonic series of cuprous oxide. Field dependence of line intensities is established for field induced lines and those allowed in the absence of field. The spectrum was taken of the yellow excitonic series of Cu 2 O in the electric field at T = 4.2 °K as well as the differential spectrum of this series which was due to the difference in absorption of light polarized in the parallel and perpendicular direction to the electric field. Theory and experiment are in good agreement.