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Two‐photon absorption and magnetoabsorption of P excitons in β‐ZnP 2
Author(s) -
Engbring J.,
Fröhlich D.,
Schepe R.,
Spitzer S.,
Arimoto O.,
Nakamura K.
Publication year - 1996
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.2221960222
Subject(s) - exciton , anisotropy , condensed matter physics , valence (chemistry) , photon energy , absorption (acoustics) , magnetic field , photon , physics , materials science , optics , quantum mechanics
Electronic transitions in biaxial β‐ZnP 2 are studied by two‐photon absorption. The anisotropy of the crystal leads to a large energy splitting of the P excitons. The energy shift of the P excitons and Landau transitions are observed in a magnetic field up to 6T. We present a theory which describes the anisotropic P excitons in a magnetic field. The analysis of the experimental data allows the determination of the anisotropic dielectric constants and effective masses of the valence and conduction bands.