Landau-Zener tunneling in 2D periodic structures in the presence of a gauge field II: Electric breakdown

Abstract

We analyze dynamics of a quantum particle in a square lattice in the Hall configuration beyond the single-band approximation. For vanishing gauge (magnetic) field this dynamics is defined by the inter-band Landau-Zener tunneling, which is responsible for the phenomenon known as the electric breakdown. We show that in the presence of a gauge field this phenomenon is absent, at least, in its common sense. Instead, the Landau-Zener tunneling leads to appearance of a finite current which flows in the direction orthogonal to the vector of a potential (electric) field.

12 pages, 8 figures

References in corpus (1)

• Wannier-Stark states and Bloch oscillations in the honeycomb lattice

Cited by in corpus (3)

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• Master equation approach to conductivity of bosonic and fermionic carriers in one- and two-dimensional lattices