Force-induced desorption of 3-star polymers in two dimensions
| Autor: | C. J. Bradly, Aleksander L Owczarek, Stuart G. Whittington, E J Janse van Rensburg |
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| Rok vydání: | 2019 |
| Předmět: |
Statistics and Probability
Surface (mathematics) Phase transition Materials science Monte Carlo method General Physics and Astronomy Statistical and Nonlinear Physics 02 engineering and technology Polymer adsorption 021001 nanoscience & nanotechnology 01 natural sciences Molecular physics Action (physics) Condensed Matter::Soft Condensed Matter 010104 statistics & probability Modeling and Simulation Phase (matter) Desorption Physics::Chemical Physics 0101 mathematics 0210 nano-technology Mathematical Physics Phase diagram |
| Zdroj: | Journal of Physics A: Mathematical and Theoretical. 52:315002 |
| ISSN: | 1751-8121 1751-8113 |
| Popis: | We investigate the phase diagram of a self-Avoiding walk model of a 3-star polymer in two dimensions, adsorbing at a surface and being desorbed by the action of a force. We show rigorously that there are four phases: A free phase, a ballistic phase, an adsorbed phase and a mixed phase where part of the 3-star is adsorbed and part is ballistic. We use both rigorous arguments and Monte Carlo methods to map out the phase diagram, and investigate the location and nature of the phase transition boundaries. In two dimensions, only two of the arms can be fully adsorbed in the surface and this alters the phase diagram when compared to 3-stars in three dimensions. |
| Databáze: | OpenAIRE |
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