TY  - JOUR
AU  - Naderi, Saber
AU  - Pouget, Emilie
AU  - Ballesta, Pierre
AU  - van der Schoot, Paul
AU  - Grelet, Eric
AU  - Lettinga, Pavlik
TI  - Fractional Hoppinglike Motion in Columnar Mesophases of Semiflexible Rodlike Particles
JO  - Physical review letters
VL  - 111
IS  - 3
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2013-03703
SP  - 037801
PY  - 2013
AB  - We report on single-particle dynamics of strongly interacting filamentous fd virus particles in the liquid-crystalline columnar state in aqueous solution. From fluorescence microscopy, we find that rare, discreteevents take place, in which individual particles engage in sudden, jumplike motion along the main rodaxis. The jump length distribution is bimodal and centered at half- and full-particle lengths. Our Browniandynamics simulations of hard semiflexible particles mimic our experiments and indicate that full-lengthjumps must be due to collective dynamics in which particles move in stringlike fashion in and betweenneighboring columns, while half jumps arise as a result of particles moving into defects. We find that thefinite domain structure of the columnar phase strongly influences the observed dynamics.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000321852900016
DO  - DOI:10.1103/PhysRevLett.111.037801
UR  - https://juser.fz-juelich.de/record/137246
ER  -