Автор |
J J Alonso |
Автор |
J Marro |
Дата выпуска |
1992-11-23 |
dc.description |
The study by kinetic mean-field techniques of a d-dimensional Ising system characterized by a sort of dynamical disorder reveals a rich phase diagram which exhibits a non-equilibrium tricritical point (only) for d>2, and re-entrance phenomena. The system time evolution is stochastic due to the simultaneous action of several independent spin-flip mechanisms, each corresponding to a different applied magnetic field. Such competition brings about randomness and a type of frustration that may occur also in real systems. In fact, this models the actual case of a magnetic system under a very rapidly fluctuating field, for example. Furthermore, the system may be interpreted as a non-equilibrium random-field system which, unlike the familiar quenched and annealed cases, contains a fast random diffusion of disorder. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Non-equilibrium phase transitions in lattice systems with random-field competing kinetics: mean-field theory |
Тип |
paper |
DOI |
10.1088/0953-8984/4/47/012 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
4 |
Первая страница |
9309 |
Последняя страница |
9320 |
Аффилиация |
J J Alonso; Dept. de Fisica Aplicada, Univ. de Granada, Spain |
Аффилиация |
J Marro; Dept. de Fisica Aplicada, Univ. de Granada, Spain |
Выпуск |
47 |