Physics – Condensed Matter – Materials Science
Scientific paper
2000-06-26
In Computer Simulation Studies in Condensed Matter Physics XIII, edited by D. P. Landau, S. P. Lewis, and H. B. Sch\"uttler, S
Physics
Condensed Matter
Materials Science
7 pages, 4 figures. S.J. Mitchell, P.A. Rikvold, G. Brown, in: Computer Simulation Studies in Condensed-Matter Physics XIII, E
Scientific paper
We examine hysteresis in cyclic voltammetry of Br electrosorption onto single-crystal Ag(100) by dynamic Monte Carlo simulations. At room temperature, this system displays a second-order phase transition from a low-coverage disordered phase to a doubly degenerate $c (2 \times 2)$ phase. The electrochemical potential is ramped back and forth across the phase transition, linearly in time, and the phase lag between the response of the adlayer and the potential is observed to depend on the sweep rate. The hysteresis in this system is caused by slow ordering/disordering kinetics and critical slowing-down.
Brown Garfield
Mitchell Steven J.
Rikvold Per Arne
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