Physical Review E
The displacement field around an isolated elementary dislocation in a medium with one-dimensional periodicity is established experimentally. The system studied is a cholesteric fingerprint texture with a macroscopic (∼10 μm) periodicity. The characteristic elastic length is smaller than the “interlayer” distance. As a result, the experimental dislocation profile deviates from the classic pattern predicted by the linear elastic theory but fits well with the recently suggested nonlinear theory of dislocation [Phys. Rev. E 59, R4752 (1999)].
Ishikawa, T. and Lavrentovich, Oleg (1999). Dislocation Profile in Cholesteric Finger Texture. Physical Review E 60(5), R5037-R5039. doi: 10.1103/PhysRevE.60.R5037 Retrieved from https://digitalcommons.kent.edu/cpippubs/76