This title appears in the Scientific Report :
2000
Please use the identifier:
http://hdl.handle.net/2128/811 in citations.
Hopping motion of lattice through nonsymmetric potentials under strong bias conditions
Hopping motion of lattice through nonsymmetric potentials under strong bias conditions
The hopping motion of lattice gases through potentials without mirror-reflection symmetry is investigated under various bias conditions. The model of two particles on a ring with four sites is solved explicitly; the resulting current in a sawtooth potential is discussed. The current of lattice gases...
Saved in:
Personal Name(s): | Kehr, K. W. |
---|---|
Koza, Z. | |
Contributing Institute: |
Institut für Festkörperforschung; IFF |
Published in: | Physical review / E, 61 (2000) S. 2319 - 2326 |
Imprint: |
College Park, Md.
APS
2000
|
Physical Description: |
2319 - 2326 |
Document Type: |
Journal Article |
Research Program: |
Kooperative Phänomene in kondensierter Materie |
Series Title: |
Physical Review E
61 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
The hopping motion of lattice gases through potentials without mirror-reflection symmetry is investigated under various bias conditions. The model of two particles on a ring with four sites is solved explicitly; the resulting current in a sawtooth potential is discussed. The current of lattice gases in extended systems consisting of periodic repetitions of segments with sawtooth potentials is studied for different concentrations and values of the bias. Rectification effects are observed, similar to the single-particle case. A mean-field approximation for the current in the case of strong bias acting against the highest barriers in the system is made and compared with numerical simulations. The particle-vacancy symmetry of the model is discussed. |