Formation of the smectic-B crystal from a simple monatomic liquid
2013 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 88, no 6, 062502Article in journal (Refereed) Published
We report a molecular dynamics simulation demonstrating that the smectic-B crystalline phase (Cry-B), commonly observed in mesogenic systems of anisotropic molecules, can be formed by a system of identical particles interacting via a spherically symmetric potential. The Cry-B phase forms as a result of a first-order transition from an isotropic liquid phase upon isochoric cooling at appropriate number density. Its structure, determined by the design of the pair potential, corresponds to the Cry-B structure formed by elongated particles with the aspect ratio 1.8. The diffraction pattern and the real-space structure inspection demonstrate dominance of the ABC-type of axial layer stacking. This result opens a general possibility of producing smectic phases using isotropic interparticle interaction both in simulations and in colloidal systems.
Place, publisher, year, edition, pages
2013. Vol. 88, no 6, 062502
Research subject Physical Chemistry
IdentifiersURN: urn:nbn:se:su:diva-99892DOI: 10.1103/PhysRevE.88.062502ISI: 000328605400003OAI: oai:DiVA.org:su-99892DiVA: diva2:690430
FunderSwedish Research Council