Deformation Potentials for Excitons in Cuprous Halides | Zendy

J. B. Anthony | Zendy; A. D. Brothers | Zendy; D. W. Lynch | Zendy

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Deformation Potentials for Excitons in Cuprous Halides

Author(s) -

J. B. Anthony,

A. D. Brothers,

D. W. Lynch

Publication year - 1972

Publication title -

physical review. b, solid state

Language(s) - English

Resource type - Journals

ISSN - 0556-2805

DOI - 10.1103/physrevb.5.3189

Subject(s) - exciton , halide , valence (chemistry) , hydrostatic pressure , deformation (meteorology) , materials science , valence band , hydrostatic equilibrium , condensed matter physics , biexciton , atomic physics , chemistry , physics , inorganic chemistry , band gap , thermodynamics , composite material , quantum mechanics

The hydrostatic-pressure shifts of the Z1,2 and Z3 exciton peaks were measured in thin films of cubic CuCl, CuBr, and CuI at 90 K. That of the E1 peak in CuI also was measured. The deformation potentials of all Z excitons and of the E1exciton in CuI, about -1 eV, are more than twice those of the Z excitons in CuCl and CuBr. This suggests the two valence bands in CuI may be considerably more mixed than in CuCl and CuBr.

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