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Excitonic Electroreflectance of CuCl
Author(s) -
Mohler E.
Publication year - 1970
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.19700380105
Subject(s) - exciton , stark effect , electric field , valence (chemistry) , chemistry , transverse plane , condensed matter physics , quadratic equation , valence band , atomic physics , molecular physics , physics , band gap , quantum mechanics , mathematics , geometry , structural engineering , engineering , organic chemistry
Transverse electroreflectance measurements have been performed on CuCl single crystals in the region of the exciton bands. The observed changes of reflectivity can be separated into two components corresponding to a linear and a quadratic Stark effect of the excitons. The linear Stark effect is due to a splitting of the valence bands of CuCl, whereas in the case of the quadratic Stark effect the relative motion of the electron–hole pair is influenced by the electric field.