Shibahara S, Yamamoto J, Takanishi Y, Ishikawa K, Takezoe H, Tanaka H. Critical behavior of layer compression modulus near the smectic- A-smectic- C(*)(alpha) transition.
PHYSICAL REVIEW LETTERS 2000;
85:1670-1673. [PMID:
10970585 DOI:
10.1103/physrevlett.85.1670]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/1999] [Indexed: 05/23/2023]
Abstract
The layer compression modulus was measured near the smectic- A-smectic- C(*)(alpha) phase transition in a chiral smectic liquid crystal. The layer compression modulus B shows marked pretransitional effects above the phase transition. The critical softening of B can be fit to a simple power law. It is described by the theoretical description based on the renormalization-group method and seems to suggest a crossover behavior. These effects clearly show that the transition is not of the Landau mean-field type.
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