A possible critical point for nematic order on the basis of Landau free energy having dual instabilities for nano-segregated smectic liquid crystals. Issue 43 (15th September 2015)

• Record Type: Journal Article
• Authors: Saito, Kazuya; Hishida, Mafumi; Yamamura, Yasuhisa
• Is Part Of: Soft matter. Volume 11:Issue 43(2015)
• Page Start: 8493
• Page End: 8498
• Publication Date: 2015-09-15
• Subjects: Soft condensed matter -- Periodicals; 530.413
• DOI: 10.1039/c5sm02014j
• Languages: English
• ISSNs: 1744-683X

Abstract

Abstract : Landau expansion of free energy assuming dual instabilities for the nano-segregated SmA phase is analyzed. Abstract : Landau expansion of free energy assuming dual instabilities for the nano-segregated SmA phase is analyzed. In addition to known phase sequences (on cooling, disordered isotropic liquid → nematic phase → smectic phase, and disordered isotropic liquid → smectic phase), a new sequence (disordered isotropic liquid → density wave with subsidiary nematic order → smectic phase) and the existence of a critical point are demonstrated in the case where the instability for density wave formation occurs at a higher temperature.