Entropy-driven phase transitions
نویسندگان
چکیده
منابع مشابه
Entropy-Driven Phase Transitions in Multitype Lattice Gas Models
In multitype lattice gas models with hard-core interaction of Widom Rowlinson type, there is a competition between the entropy due to the large number of types, and the positional energy and geometry resulting from the exclusion rule and the activity of particles. We investigate this phenomenon in four different models on the square lattice: the multitype Widom Rowlinson model with diamond-shap...
متن کاملEntropy-driven phase transitions with influence of the field-dependent diffusion coefficient
We present a comprehensive study of the phase transitions in the single-field reaction-diffusion stochastic systems with field-dependent mobility of a power-low form and the internal fluctuations. Using variational principles and mean-field theory it was shown that the noise can sustain spatial patterns and leads to disordering phase transitions. We have shown that the phase transitions can be ...
متن کاملEntropy driven phase transitions in colloid–polymer suspensions: Tests of depletion theories
The phase behavior of model athermal silica ~radius R550 nm!–polystyrene–toluene suspensions has been determined over nearly two orders of magnitude in polymer or colloid size asymmetry. Fluid–gel, fluid–crystal, and fluid–fluid transitions are observed as Rg , the polymer radius of gyration, increases. Based on the polymer concentration relative to the dilute–semidilute crossover density, cp /...
متن کاملHot electron injection driven phase transitions
We report on a generalmechanism for photo-induced phase transitions. The process relies on the photo-injection of hot electrons from an adjacent metallic layer to trigger the structural dynamics of the materials of interest. This mechanism is demonstrated for the semiconductor-to-metal phase transition of VO2 using a 20 nm Au injection layer. The nature of the phase transition is demonstrated b...
متن کاملPhase transitions in periodically driven macroscopic systems.
We study the large-time behavior of a class of periodically driven macroscopic systems. We find, for a certain range of the parameters of either the system or the driving fields, the time-averaged asymptotic behavior effectively is that of certain other equilibrium systems. We then illustrate with a few examples how the conventional knowledge of the equilibrium systems can be made use of in cho...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 1999
ISSN: 0378-4371
DOI: 10.1016/s0378-4371(98)00501-9