Quenching of exciton diamagnetic shifts in polar,layered materials |
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| Authors: | J. Pollmann N.O. Lipari H. Büttner |
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| Affiliation: | IBM T.J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, U.S.A.;Physikalisches Institut der Universität Bayreuth, 8580 Bayreuth, West Germany |
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| Abstract: | A theory for Wannier excitons in a magnetic field or arbitrary strength, including both anisotropy and exciton-phonon coupling, is presented. Both the anisotropy and the exciton-phonon coupling are shown to considerably quench the shifts of the energy levels in the magnetic field. Results are presented for PbI2 and compared with recent experimental data. |
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