Quantum interference effects in percolated metal networks
Paper in proceeding, 1994

Quantum corrections (QC) to the resistivity due to weak localization (WL) and electron-electron interaction (EEI) have been measured for percolated metal networks with percolation coherence length z comparable to the quantum length scales-the phase-breaking length L and the thermal diffusion length LT. Far from the percolation metal-insulator transition (MIT) the `macroscopic' disorder is averaged over the quantum lengths (L,LTz) and the QC are of the universal two-dimensional (2D) type with R=R(z), where R(z) is the resistance per square at scales larger than z. A crossover 2D1D in the dimensionality of the QC and the Nyquist phase-braking mechanism is observed near the MIT, where zL,LT

localised electron states

metal-insulator transition

interface electron states

quantum interference phenomena



M. E. Gershenson

P. M. Echternach

H. M. Bozler

A. L. Bogdanov

Department of Physics

Bengt Nilsson

Department of Physics

Physica B: Condensed Matter

0921-4526 (ISSN)


Areas of Advance

Nanoscience and Nanotechnology

Materials Science

Subject Categories

Condensed Matter Physics



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