Abstract
The effects of spin–phonon interaction on the temperature dependence of the spin-wave andphonon spectrum in thin ferroelectric transverse Ising films are studied using aGreen function formalism beyond the random phase approximation. It is shownthat due to the surface modes and the spin–phonon interaction the spin-wavedamping effects in thin ferroelectric films are enhanced in comparison to thebulk. The phonon spectrum is discussed, too. Additional phonon damping andphonon frequency shift arise when the spin–phonon interaction is properly included.
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