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VOLUME 45 (1987) | ISSUE 11 | PAGE 546
Bilayer-structure Langmuir films without an inversion center
Polar multilayer Langmuir films of bilayer structure have been observed for the first time. An irreversible phase transition has been observed. At this transition the structural period of the films changes, the pyroelectric coefficient decreases by a factor of 40, and the dielectric constant goes through a maximum as a function of the temperature.