Critical Behaviour of Thermal Relaxation in Disordered Systems

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dc.creatorMukherjee, C. D.
dc.creatorBardhan, K. K.
dc.date2003-03-17
dc.date.accessioned2026-07-07T02:50:12Z
dc.date.available2026-07-07T02:50:12Z
dc.descriptionAt a composition far above the percolation threshold, the resistance of a composite sample increases with time due to Joule heating as a constant current of sufficiently large value is passed through the sample. If the current is less than a certain breakdown current ($I_b$) the resistance eventually reaches a steady value with a characteristic relaxation time $τ_h$. The latter diverges with current $I$ as $τ_h \sim {(1-I^2/ {I_b}^2)}^{-z}$. The value of the exponent $z$ displays large fluctuations leading to unusual scaling of the relaxation time. Comparisions with behaviour of thermodynamic dynamic critical phenomena are made.
dc.identifierhttps://arxiv.org/abs/cond-mat/0303313
dc.identifierhttp://arxiv.org/abs/cond-mat/0303313
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21029
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleCritical Behaviour of Thermal Relaxation in Disordered Systems
dc.typetext

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