Electronic Resource
Springer
International journal of thermophysics
16 (1995), S. 33-43
ISSN:
1572-9567
Keywords:
free-standing film
;
heat capacity
;
layer-by-layer transition
;
liquid crystal
;
smectic-A hexatic-B transition
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Employing our free-standing film calorimetric system. we have identified three remarkable layer-by-layer transitions in several liquid crystal compounds. Each of these transitions can be well described by the simple power-law form:L = L 0 t. The layering transitions liMind near the smectic-A- hexatic-B and smectic-A crystal-B transitions are well characterized by the exponent v≈ 1 3. This value is consistent with models based on a van der Wads-like dominant intermolecular interaction. Another novel layer-by-layer thinning transition has been discovered above the hulk smectic-A isotropic transition of a perfluorinated liquid crystal compound. The value of the exponent obtained, v ≈ 3 4. cannot he easily explained using familiar models.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01438955
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