Volume 47, Number 5, September I 1999
|Page(s)||575 - 581|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 September 2002|
Scaling of the hysteresis loop in two-dimensional solidification
Institut für Festkörperphysik, Universität Hannover Appelstraße 2, D-30167 Hannover, Germany
2 Department of Physics, Texas A&M University College Station, TX 77843-4242, USA
3 Institut für Theoretische Physik, Universität Hannover Appelstraße 2, D-30167 Hannover, Germany
Accepted: 8 July 1999
The first-order phase transitions between a two-dimensional (2d) gas and the 2d solid of the first monolayer have been studied for the noble gases Ar, Kr and Xe on a NaCl(100) surface in quasi-equilibrium with the three-dimensional (3d) gas phase. Using linear temperature ramps, we show that the widths of the hysteresis loops of these transitions as a function of the heating rate, r, scale with a power law , with α between 0.4 and 0.5 depending on the system. The hysteresis loops for different heating rates are similar. The island area of the condensed layer was found to grow initially with a t4 time dependence. These results are in agreement with theory, which predicts and hysteresis loop similarity.
PACS: 68.35.Rh – Phase transitions and critical phenomena / 64.70.Hz – Solid-vapor transitions / 61.14.Hg – Low-energy electron diffraction (LEED) and reflection high-energy electron diffraction (RHEED)
© EDP Sciences, 1999
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