Abstract
The eight-branch spectrum of ferroelectric is found on the basis of the phenomenological Hamiltonian of an antiferroelectric with four electric sublattices using the method of approximate secondary quantization and canonical Bogoliubov transformations.
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Original Russian Text © I.R. Kyzyrgulov, N.R. Al’mukhametova, 2009, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2009, Vol. 73, No. 8, pp. 1185–1186.
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Kyzyrgulov, I.R., Al’mukhametova, N.R. Spectrum of ferroelectric wave in multisublattice antiferroelectrics. Bull. Russ. Acad. Sci. Phys. 73, 1123–1124 (2009). https://doi.org/10.3103/S1062873809080309
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DOI: https://doi.org/10.3103/S1062873809080309