AN ANALOGY BETWEEN SUPERCONDUCTORS AND SMECTICS-A (REPRINTED FROM SOLID-STATE COMMUN, VOL 10, PG 753-756, 1972)

被引:7
作者
DEGENNES, PG
机构
关键词
D O I
10.1016/0038-1098(93)90291-T
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The conformation of a smectic A can be described by a phase function phi(R), the n-th layer corresponding to phi(R) = 2pin. The role ot the phase in smectics A and in superfluids is similar. This analogy leads to the following predictions for a second order smectic A <-> nematic transition: (1) the transition temperature is lowered if twist, or bend distortions are imposed: these distortions correspond to a magnetic field in superconductors. (2) the Frank coefficients K2 and K3 of the nematic phase must show pretransitional anomalies.
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页码:1039 / 1042
页数:4
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