Charge ordering and interlayer phase coherence in quantum Hall superlattices

Details Charge ordering and interlayer phase coherence in quantum Hall superlattices Charge ordering and interlayer phase coherence in quantum Hall superlattices

2004-04-06

arxiv.org/abs/cond-mat/0404135v1

Low Temp. Phys. v. 30, p. 321 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages

Scientific paper

10.1063/1.1705440

The possibility of the existence of states with a spontaneous interlayer phase coherence in multilayer electron systems in a high perpendicular to the layers magnetic field is investigated. It is shown that phase coherence can be established in such systems only within individual pairs of adjacent layers, while such coherence does not exist between layers of different pairs. The conditions for stability of the state with interlayer phase coherence against transition to a charge-ordered state are determined. It is shown that in the system with the number of layers N\leq 10 these conditions are satisfied at any value of the interlayer distance d. For N>10 there are two intervals of stability: at sufficiently large and at sufficiently small d. For N\to \infty the stability interval in the region of small d vanishes

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