Yethiraj A, Bechhoefer J
Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6.
Phys Rev Lett. 2000 Apr 17;84(16):3642-5. doi: 10.1103/PhysRevLett.84.3642.
We have conducted two quantitative tests of predictions based on the Halperin-Lubensky-Ma (HLM) theory of fluctuation-induced first-order phase transitions. First, we explore the effect of an external magnetic field on the nematic-smectic- A transition in a liquid crystal. Second, we examine the dependence of the first-order discontinuity as a function of mixture concentration in pure 8CB and three 8CB-10CB mixtures. We find the first quantitative evidence for deviations from the HLM theory.
我们基于哈尔珀林-卢本斯基-马（HLM）涨落诱导一阶相变理论进行了两项预测的定量测试。首先，我们探究了外部磁场对液晶中向列相-近晶A相转变的影响。其次，我们研究了在纯8CB以及三种8CB - 10CB混合物中，一阶不连续性随混合物浓度的变化关系。我们发现了偏离HLM理论的首个定量证据。
