Dynamical phases of attractive particles sliding on a structured surface

Autor(en)

J. Hasnain, S. Jungblut, C. Dellago

Abstrakt

Inspired by experiments on quartz crystal microbalance setups, we study the mobility of a monolayer of Lennard-Jones particles driven over a hexagonal external potential. We pay special attention to the changes in the dynamical phases that arise when the lattice constant of the external substrate potential and the Lennard-Jones interaction are mismatched. We find that if the average particle separation is such that the particles repel each other, or interact harmonically, the qualitative behavior of the system is akin to that of a monolayer of purely repulsive Yukawa particles. On the other hand, if the particles typically attract each other, the ensuing dynamical states are determined entirely by the relative strength of the Lennard-Jones interaction with respect to that of the external potential.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Journal

Journal of Physics: Condensed Matter

Band

27

Anzahl der Seiten

9

ISSN

0953-8984

DOI

https://doi.org/10.1088/0953-8984/27/19/194122

Publikationsdatum

05-2015

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik, 103015 Kondensierte Materie, 103029 Statistische Physik

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/9b6f731e-c817-4e8b-9311-b5073bb2438e