Fast Diffusion of Long Guest Rods in a Lamellar Phase of Short Host Particles

Autor:	Alvarez, Laura, Lettinga, M. Paul, Grelet, Eric
Rok vydání:	2017
Předmět:	Condensed Matter - Soft Condensed Matter
Zdroj:	Phys. Rev. Lett. 118, 178002 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.118.178002
Popis:	We investigate the dynamic behavior of long guest rod-like particles immersed in liquid crystalline phases formed by shorter host rods, tracking both guest and host particles by fluorescence microscopy. Counter-intuitively, we evidence that long rods diffuse faster than short rods forming the one-dimensional ordered smectic-A phase. This results from the larger and non-commensurate size of the guest particles as compared to the wavelength of the energy landscape set by the lamellar stack of liquid slabs. The long guest particles are also shown to be still mobile in the crystalline smectic-B phase, as they generate their own voids in the adjacent layers. Comment: 5 pages, 4 figures, Accepted in Phys. Rev. Lett
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1703.06474 Zobrazit plný text záznamu View this record from Arxiv