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APS » Journals » Phys. Rev. Lett. » Volume 42 » Issue 18
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Phys. Rev. Lett. 42, 1220–1223 (1979)

Freely Suspended Ferroelectric Liquid-Crystal Films: Absolute Measurements of Polarization, Elastic Constants, and Viscosities

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Charles Rosenblatt*
Gordon McKay Laboratory, Harvard University, Cambridge, Massachusetts 02138

Ronald Pindak
Bell Laboratories, Murray Hill, New Jersey 07974

Noel A. Clark
Department of Physics and Astrophysics, University of Colorado, Boulder, Colorado 80309

Robert B. Meyer
Department of Physics, Brandeis University, Waltham, Massachusetts 02154

Received 5 June 1978; revised 30 January 1979; published in the issue dated 30 April 1979

The quenching by an electric field of molecular-orientation fluctuations in freely suspended ferroelectric smectic-C films has been studied by light scattering, allowing absolute measurements of polarization, elastic constants, and viscosities. Evidence is presented to demonstrate surface contributions to Frank elasticity and to show that Frank elasticity is nonlocal.

© 1979 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.42.1220
DOI:
10.1103/PhysRevLett.42.1220
PACS:

*Present address: Applied Laser Spectroscopy Group, Lawrence Berkeley Laboratory, University of California, Berkeley, Cal. 94720.

 
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