Strain distributions in the dipolar glass KTaO3:Li
- 27 February 1989
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (8) , 1527-1531
- https://doi.org/10.1088/0953-8984/1/8/016
Abstract
A single crystal of K0.97Li0.03TaO3 has been studied by neutron diffraction. The freezing into the dipolar glass state is accompanied by a strong increase of the Bragg intensities. The Bragg intensities are analysed in terms of an extinction model. It is proposed that the partial relief of extinction at the freezing temperature is due to a fragmentation of the crystal into strained regions. The width of the strain distribution and the characteristic size of the regions are derived.Keywords
This publication has 11 references indexed in Scilit:
- Time-dependent phase transformation inKTaO3:LiPhysical Review B, 1987
- The Glasslike State of the Mixed Alkali Halide-Alkali CyanidesPhysica Scripta, 1987
- Theory of the Orientational Glass State inMixed CrystalsPhysical Review Letters, 1986
- Dipolar Glass State inPhysical Review Letters, 1986
- X-ray scattering study of the random electric dipole system KTaO2:LiJournal of Physics C: Solid State Physics, 1985
- Crystal growth of KTa1−xNbxO3 (0<x⩽0.04) solid solutions by a slow-cooling methodJournal of Crystal Growth, 1982
- Raman scattering studies of the effects of a symmetry-breaking impurity on the ferroelectric phase transition in K1−xLixTa1−yNbyO3Solid State Communications, 1981
- Extinction within the limit of validity of the Darwin transfer equations. III. Non-spherical crystals and anisotropy of extinctionActa Crystallographica Section A, 1975
- Extinction within the limit of validity of the Darwin transfer equations. I. General formalism for primary and secondary extinction and their applications to spherical crystalsActa Crystallographica Section A, 1974
- Extinction within the limit of validity of the Darwin transfer equations. II. Refinement of extinction in spherical crystals of SrF2and LiFActa Crystallographica Section A, 1974