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原文連結
論文資訊
- 類型：已發表論文
- 日期：2016-03-24
摘要
We explore the stability of far-from-equilibrium metastable states of a three-dimensional Coulomb glass at zero temperature by studying charge avalanches triggered by a slowly varying external electric field. Surprisingly, we identify a sharply defined dynamical ("depinning") 相變 from stationary to nonstationary charge displacement at a critical value of the external electric field. Using particle-conserving dynamics, 無標度 system-spanning avalanches are observed only at the critical field. We show that the qualitative features of this depinning transition are completely different for an equivalent short-range model, highlighting the key importance of long-range interactions for nonequilibrium dynamics of Coulomb glasses.
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