3A03 Attempt to prove the reverse process of Lehmann effect in chiral free-standing films

Abstract

Free-standing films composed of chiral liquid crystals are known to exhibit the unidirectional director rotation under transmembrane mass flow. The dynamics is well described by Leslie's phenomenological equation, which predicts the inverse process of mass transports driven by the director rotation. In this report, we investigated this inverse effect. Applying a rotating E-field to the film that should drive the unidirectional rotation of the c-director, we simultaneously measured the transported gas through the film.