Quantum transport of slow charge carriers in quasicrystals and correlated systems

Details Quantum transport of slow charge carriers in quasicrystals and correlated systems Quantum transport of slow charge carriers in quasicrystals and correlated systems

2006-01-09

arxiv.org/abs/cond-mat/0601145v2

Physical Review Letters 97 (2006) 026601

Physics

Condensed Matter

Materials Science

4 pages

Scientific paper

10.1103/PhysRevLett.97.026601

We show that the semi-classical model of conduction breaks down if the mean free path of charge carriers is smaller than a typical extension of their wavefunction. This situation is realized for sufficiently slow charge carriers and leads to a transition from a metallic like to an insulating like regime when scattering by defects increases. This explains the unconventional conduction properties of quasicrystals and related alloys. The conduction properties of some heavy fermions or polaronic systems, where charge carriers are also slow, present a deep analogy.

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