Shear wave attenuation in smectic-A liquid crystalsReport as inadecuate




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Abstract : We have studied the shear impedance of two smectics-A when the propagation of the shear wave is along the normal to the layers. We observed that the real part and the imaginary part of the shear impedance differ significantly, indicating a relaxation process. We analysed our results on the basis of a coupling between the director fluctuations and the shear flow.

Keywords : smectic liquid crystals ultrasonic propagation ultrasonic relaxation smectic A liquid crystals shear impedance shear wave relaxation process director fluctuations shear flow ultrasonic attenuation





Author: F. Kiry P. Martinoty

Source: https://hal.archives-ouvertes.fr/



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