title: Defect-mediated stripe reordering in wrinkles upon gradual changes in compression direction.
abstract: We study the stripe rearrangements in microwrinkles subjected to gradual changes in the compression direction. The spatially averaged stripe orientation follows the changing compression direction with a deviation of 3-4 degrees. Meanwhile, the local stripe orientation stays constant for a certain period and a dislocation gliding nearby causes it to jump suddenly in the direction of compression. This sequence repeatedly occurs over the surface. The regular pattern transiently appears in the stripe orientation as a result of the organized glide motions, indicating the interaction between dislocations.
authors.affiliation: Dissipative-Hierarchy Structures Laboratory, Frontier Research System, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Ohzono
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Shimomura