Díaz-Guilera, A.; Rubí, J.M. - In: Physica A: Statistical Mechanics and its Applications 135 (1986) 1, pp. 200-212
Voltage fluctuations near Gunn threshold are analyzed by introducing a model which takes into account the presence of inhomogeneities in the donor density. Correlation functions in different representations are computed and critical behavior is discussed. Our results are compared with Keizer's...