Abstract
We show that current localization in polycrystalline varistors occurs on paths which are usually in the universality class of the directed polymer in a random medium. We also show that, in ceramic superconductors, voltage localizes on a surface which maps to an Ising domain wall. The emergence of these manifolds is explained and their structure is illustrated using direct solution of non-linear resistor networks.
Original language | English (US) |
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Pages (from-to) | L327-L333 |
Journal | Journal of Physics A: Mathematical and General |
Volume | 35 |
Issue number | 23 |
DOIs | |
State | Published - Jun 14 2002 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- General Physics and Astronomy