Frustration of crystallisation by a liquid–crystal phase

Autor: Syme, Christopher D., Mosses, Joanna, González-Jiménez, Mario, Shebanova, Olga, Walton, Finlay, Wynne, Klaas
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Scientific Reports.
ISSN: 2045-2322
DOI: 10.1038/srep42439
Popis: Frustration of crystallisation by locally favoured structures is critically important in linking the phenomena of supercooling, glass formation, and liquid-liquid transitions. Here we show that the putative liquid-liquid transition in n-butanol is in fact caused by geometric frustration associated with an isotropic to rippled lamellar liquid-crystal transition. Liquid-crystal phases are generally regarded as being “in between” the liquid and the crystalline state. In contrast, the liquid-crystal phase in supercooled n-butanol is found to inhibit transformation to the crystal. The observed frustrated phase is a template for similar ordering in other liquids and likely to play an important role in supercooling and liquid-liquid transitions in many other molecular liquids.
Databáze: OpenAIRE