title: Abnormal rolls and regular arrays of disclinations in homeotropic electroconvection
abstract: We present the first quantitative verification of an amplitude description for systems with (nearly) spontaneously broken isotropy, in particular for the recently discovered abnormal-roll states. We also obtain a conclusive picture of the three-dimensional director configuration in a spatial period doubling phenomenon involving disclination loops. The first observation of two Lifshitz frequencies in electroconvection is reported.
authors.affiliation: Department of Physics, Kyoto University, 606-8502 Kyoto, Japan.
authors.initials: AG
authors.lastname: Rossberg
authors.initials: N
authors.lastname: Eber
authors.initials: A
authors.lastname: Buka
authors.initials: L
authors.lastname: Kramer