| Автор | Volker C Weiss |
| Автор | Wolffram Schröer |
| Дата выпуска | 1998-10-26 |
| dc.description | The effect of employing different approximations to the local density on properties of inhomogeneous systems as obtained from a gradient expansion of the local free energy (gradient theory) is investigated. We present liquid - vapour density profiles, surface tensions, correlation lengths, and Ginzburg temperatures for an ionic model fluid, the restricted primitive model (RPM), treated in the framework of Debye - Hückel theory. The dependence of the interfacial properties, density profile and surface tension, on the type of local-density approximation is comparatively weak (at most a factor of four in the surface tension). In contrast, the much more sensitive Ginzburg temperature, which estimates the extent of the critical region, varies over a range of four orders of magnitude depending on which local-density approximation is applied. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Relevance of the local-density approximation to interfacial properties of ionic fluids within gradient theory |
| Тип | lett |
| DOI | 10.1088/0953-8984/10/42/004 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 10 |
| Первая страница | L705 |
| Последняя страница | L710 |
| Аффилиация | Volker C Weiss; Institut für Anorganische und Physikalische Chemie der Universität Bremen, D-28359 Bremen, Germany |
| Аффилиация | Wolffram Schröer; Institut für Anorganische und Physikalische Chemie der Universität Bremen, D-28359 Bremen, Germany |
| Выпуск | 42 |
