Central mode and soft mode behavior in PbMg1/Nb2/3O3 relaxor ferroelectric

@inproceedings{Kamba2004CentralMA,
  title={Central mode and soft mode behavior in PbMg1/Nb2/3O3 relaxor ferroelectric},
  author={Stanislav Kamba and Martin Kempa and Viktor Bovtun and Jan Petzelt and Kyle S. Brinkman and Nava Setter},
  year={2004}
}
The relaxor ferroelectric PbMg1/Nb2/3O3 was investigated by means of broad-band dielectric and Fourier Transform Infrared (FTIR) transmission spectroscopy in the frequency range from 1 MHz to 15 THz at temperatures between 20 and 900 K using PMN films on infrared transparent sapphire substrates. While thin film relaxors display reduced dielectric permittivity at low frequencies, their high frequency intrinsic or lattice response is shown to be the same as single crystal/ceramic specemins. It… 
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