Lattice Dynamics and Central-Mode Phenomena in the Dielectric Response of Ferroelectrics and Related Materials
作者： E. Buixaderas , S. Kamba , J. Petzelt
DOI: 10.1080/00150190490508909
关键词: Ferroelectricity 、 Dielectric 、 Materials science 、 Ceramic 、 Phonon 、 Condensed matter physics 、 High-κ dielectric 、 Crystal 、 Antiferroelectricity 、 Piezoelectricity
摘要: In this review we describe and discuss recent results on the linear dielectric response of high-permittivity crystals ceramics in wide frequency range 102–1014Hz. Our attention is paid to materials which exhibit some interesting low-frequency polar-phonon anomalies combination with additional dispersion below polar phonon region. The following compounds are discussed: microwave Bi1.5Zn1.0Nb1.5O7, antiferroelectric PbZrO3ceramics AgNbO3crystals, ferroelectric LiNaGe4O9, LaBGeO5, Cd2Nb2O7and SrBi2Ta2O9crystals, incommensurate Sr2Nb2O7, Ba2NaNb5O15and BCCD crystals, dipolar-glass crystal Rb1/2(ND4)1/2D2PO4, relaxor Pb(Sc1/2Ta1/2)O3and PLZT PMN 2/95/5 relaxor-based PMN-PT, PZN-PT BiScO3-PT ceramics. For these spectra discussed together their flow-frequency regions between, t...
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