# Anomalous Temperature Dependence of the Elastic Constant B at the Smectic-to-Nematic Phase Transition in Binary Mixtures of Hexyloxycyanobiphenyl-Octyloxycyanobiphenyl (60CB-80CB)

 Title: Anomalous Temperature Dependence of the Elastic Constant B at the Smectic-to-Nematic Phase Transition in Binary Mixtures of Hexyloxycyanobiphenyl-Octyloxycyanobiphenyl (60CB-80CB) Author: Fisch, M. R.; Sorensen, L. B.; Pershan, Peter S. Note: Order does not necessarily reflect citation order of authors. Citation: Fisch, M. R., L. B. Sorensen, and Peter S. Pershan. 1982. Anomalous temperature dependence of the elastic constant B at the smectic-to-nematic phase transition in binary mixtures of hexyloxycyanobiphenyl-octyloxycyanobiphenyl (60CB-80CB). Physical Review Letters 48(14): 943–946. Full Text & Related Files: Fisch_Anomalous.pdf (651.0Kb; PDF) Abstract: In hexyloxycyanobiphenyl-octyloxycyanobiphenyl (60CB-80CB) binary mixtures displaying reentrant behavior, the smectic elastic constant, B, deviates from a simple power law of the form $$B=B_1(T_{NA}-T)^{\varphi}$$ and levels off as $$T \rightarrow T_{NA}$$. This behavior is consistent with the Nelson-Toner dislocation-unbinding model of the transition. Published Version: doi:10.1103/PhysRevLett.48.943 Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10361604 Downloads of this work: