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Point-like impurity-dislocation interactions in smectic A liquid crystals
Authors:L Lejek
Institution:  a Institute of Physics, Czechoslovak Academy of Sciences, Na Slovance 2, 18040, Prague 8, Czechoslovakia
Abstract:The displacement field created in the neighbourhood of a point-like impurity, its self-energy and point-like impurity-dislocation interaction are calculated for a smectic A liquid crystal in the approximation of small deformations. The binding energy of a point defect to an edge dislocation is also estimated. The use of the Peach-Kochler formula as a basis for the calculation of the dislocation interaction with other defects is discussed.
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