Microwave Nonlinear Susceptibilities Due to Electronic and Ionic Anharmonicities in Acentric Crystals
1971; American Physical Society; Volume: 26; Issue: 7 Linguagem: Inglês
10.1103/physrevlett.26.387
ISSN1092-0145
AutoresG. D. Boyd, Thomas J. Bridges, M. A. Pollack, E. H. Turner,
Tópico(s)Crystal Structures and Properties
ResumoA microwave nonlinear susceptibility analogous to the optical and electro-optical nonlinear susceptibilities is investigated in a number of acentric ferroelectric and semiconductor crystals. Contributions from ionic nonlinearities result in enormously larger nonlinear coefficients in some materials than any known for the optical or electro-optical effects. An interpretation is presented in terms of a relationship between the nonlinear coefficients and the electronic and ionic linear susceptibilities.
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