Stabilisation of polarised clusters in KTaO3by Li defects: formation of a polar glass
- 28 July 1979
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 12 (14) , L563-L567
- https://doi.org/10.1088/0022-3719/12/14/005
Abstract
Dielectric relaxation and electret polarisation effects in KTaO3:Li have been investigated as a function of Li concentration. The data reveal the presence of polarised clusters which are stabilised by Li impurities and permit a determination to be made of the coherence length for ferroelectric order in KTaO3. Based on the polarisation results, the KTaO3:Li system exhibits characteristics which indicate that it represents an electric dipole analogue of a spin glass and therefore should be termed a 'polar glass'.Keywords
This publication has 12 references indexed in Scilit:
- Extrinsic Peak in the Susceptibility of Incipient Ferroelectric KTa: LiPhysical Review Letters, 1978
- Statics and dynamics of ?soft? impurities in a crystalZeitschrift für Physik B Condensed Matter, 1977
- NQR and relaxation at the ferroelectric transition in NaNPhysical Review B, 1977
- Defects and the central peak near structural phase transitionsPhysical Review B, 1976
- Polarized clusters in paraelectric KAsPhysical Review B, 1975
- Polarization Fluctuations near a Ferroelectric Phase TransitionPhysical Review B, 1972
- Zum dielektrischen Verhalten von Triglyzinsulfat im Bereich von 0,5 bis 4,5 GHzZeitschrift für Naturforschung A, 1969
- Electromechanical Behavior of Single-Crystal Strontium TitanatePhysical Review B, 1967
- Electromechanical Behavior of Single Crystals of Barium Titanate from 25 to 160°CJournal of Applied Physics, 1959
- Dispersion and Absorption in Dielectrics I. Alternating Current CharacteristicsThe Journal of Chemical Physics, 1941