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VOLUME 30 (1979) | ISSUE 2 | PAGE 111
Step unwinding of a spiral in a cholesteric liquid crystal
A nonmonotonic (step) dependence of the pitch of the cholesteric spiral on the magnitude of the field in a CLC layer, to the surfaces of which the director is attached, has been observed experimentally. Under these conditions for an abrupt turn-off of the relaxation of the unwound spiral is accompanied by the appearance of spatially modulated structures.