Calorimetric and Structural Characterization of Thin Liquid-Crystal Films Exhibiting the Smectic-A–Hexatic-B–Crystal-BTransitions

1995 ◽  
Vol 74 (24) ◽  
pp. 4863-4866 ◽  
Author(s):  
A. J. Jin ◽  
M. Veum ◽  
T. Stoebe ◽  
C. F. Chou ◽  
J. T. Ho ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Structural Characterization ◽  
Liquid Crystal Films ◽  
Smectic A ◽  
Crystal Films

Smectic C to smectic A transition induced mechanically by the rupture of freely suspended liquid crystal films

Soft Matter ◽  
2017 ◽  
Vol 13 (17) ◽  
pp. 3199-3204 ◽  
Author(s):  
Torsten Trittel ◽  
Kirsten Harth ◽  
Ralf Stannarius
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Films ◽  
Smectic A ◽  
Smectic C ◽  
Crystal Films ◽  
Freely Suspended

Thermal Property Evolution Toward Effectively Two-Dimensional Substrate-Free Systems

1989 ◽  
Vol 177 ◽  
Author(s):  
R. Geer ◽  
T. Stoebe ◽  
C. C. Huang ◽  
R. Pindak ◽  
J. Goodby
Keyword(s):  
Heat Capacity ◽  
Liquid Crystal ◽  
Adiabatic Calorimeter ◽  
Two Dimensional ◽  
Limiting Behavior ◽  
Liquid Crystal Films ◽  
Smectic A ◽  
Surface Transition ◽  
Crystal Films ◽  
Molecular Layers

ABSTRACTA high-resolution differential quasi-adiabatic calorimeter has been developed to investigate the physical properties of freestanding liquid-crystal films. Our recent heat-capacity studies near the smectic-A-hexatic-B transition of both 65OBC and 46OBC freestanding films clearly demonstrate the evolution towards twodimensional limiting behavior in four-layer films. As the film thickness decreases towards four molecular layers, the heatcapacity anomalies first display separate peaks for the surface and interior transitions and then evolve to one dominated by the surface transition.

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