Classical magnetotransport of inhomogeneous conductors

Details Classical magnetotransport of inhomogeneous conductors Classical magnetotransport of inhomogeneous conductors

2005-08-09

arxiv.org/abs/cond-mat/0508229v2

Phys. Rev. B 72 (2005) 094417

Physics

Condensed Matter

Disordered Systems and Neural Networks

12 pages, 13 figures. Minor typos corrected

Scientific paper

10.1103/PhysRevB.72.094417

We present a model of magnetotransport of inhomogeneous conductors based on an array of coupled four-terminal elements. We show that this model generically yields non-saturating magnetoresistance at large fields. We also discuss how this approach simplifies finite-element analysis of bulk inhomogeneous semiconductors in complex geometries. We argue that this is an explanation of the observed non-saturating magnetoresistance in silver chalcogenides and potentially in other disordered conductors. Our method may be used to design the magnetoresistive response of a microfabricated array.

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