title: Monolayers at the air-water interface: Maxwell displacement current and optical second-harmonic generation studies and theoretical treatment.
abstract: The structural properties and the surface pressure pi-A isothermal diagram have been investigated during compression of the 4-n-pentyl-4'-cyanobiphenyl (5CB) monolayer film on the water surface, both experimentally, using both the Maxwell displacement current (MDC) and optical second-harmonic generation (SHG) techniques, and theoretically, in the framework of the molecular model, assuming that the randomly tilted polar 5CB molecules on the water surface are replaced by the collective tilted array of unit vectors. The average angle is evaluated based on the both MDC and SHG techniques. The reasonable agreement between the calculated and experimental values of pi(A) was obtained.
authors.affiliation: Laboratorium voor Akoestiek en Thermische Fysica, Department Natuurkunde en Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium. Alexandre.Zakharov@fys.kuleuven.ac.be
authors.forename: A V
authors.initials: AV
authors.lastname: Zakharov
authors.forename: Mitsumasa
authors.initials: M
authors.lastname: Iwamoto