Microwave Dielectric Spectroscopy of Ferroelectrics

作者: Jonas Grigas

DOI: 10.1080/00150190902876249

关键词:

摘要: This paper is a review article that emphasizes dynamical processes of electromagnetic wave interaction with ferroelectrics proceed in such way characteristic frequencies various excitations related to polarization lie microwave range: i) soft mode frequency number displacive on approaching the Curie temperature drops into millimeter range or splits components, lower which lies at microwaves and explains static permittivity; ii) relaxation order-disorder also range, iii) permittivity relaxors dipolar glasses occurs microwaves. Results complete dielectric spectra fundamental dispersion 1 MHz 1012 Hz its microscopic description most materials are presented discussed.

参考文章(5)
S Kamba, V Bovtun, J Petzelt, I Rychetsky, R Mizaras, A Brilingas, J Banys, J Grigas, M Kosec, Dielectric dispersion of the relaxor PLZT ceramics in the frequency range 20 Hz-100 THz Journal of Physics: Condensed Matter. ,vol. 12, pp. 497- 519 ,(2000) , 10.1088/0953-8984/12/4/309
J. Grigas, Splitting of the soft mode in a double well potential of SbSI Ferroelectrics. ,vol. 226, pp. 51- 60 ,(1999) , 10.1080/00150199908230289
J Banys, A Kajokas, S Lapinskas, A Brilingas, J Grigas, J Petzelt, S Kamba, Microwave and millimetre-wave dielectric response of Rb1-x(ND4)D2PO4 dipolar glass Journal of Physics: Condensed Matter. ,vol. 14, pp. 3725- 3733 ,(2002) , 10.1088/0953-8984/14/14/305
P. Keburis, J. Banys, A. Brilingas, Z. Bortkevic, A. Kholkin, M. E. V. Costa, Dielectric Dispersion and Distribution of the Relaxation Times of the Relaxor Ceramics BBT Ferroelectrics. ,vol. 353, pp. 87- 90 ,(2007) , 10.1080/00150190701367101