title: Interaction of surfaces in smectic membranes and their instability near thinning transitions.
abstract: We report measurements of the interaction between surfaces of the presmectic membrane above the temperature of transition to the phase without layer ordering. Investigations were performed employing cholesteric droplets embedded in the membrane in the temperature range of thinning transitions. Upon heating, the difference between the membrane tension and surface tension of the bulk sample decreases sufficiently, which leads to membrane instability. After the thinning transition, the membrane returns to a stable state with a larger value of surface interaction.
authors.affiliation: Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russia.
authors.forename: P V
authors.initials: PV
authors.lastname: Dolganov
authors.forename: P
authors.initials: P
authors.lastname: Cluzeau
authors.forename: G
authors.initials: G
authors.lastname: Joly
authors.forename: V K
authors.initials: VK
authors.lastname: Dolganov
authors.forename: H T
authors.initials: HT
authors.lastname: Nguyen