Conductivity activation energy for bilayer hetero-structures at integer filling numbers

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dc.creatorFalko, V.
dc.creatorIordanski, S. V.
dc.creatorKashuba, A.
dc.date2000-03-08
dc.date.accessioned2026-07-07T02:37:00Z
dc.date.available2026-07-07T02:37:00Z
dc.descriptionWe report on study of low-energy excitations in a bilayer hetero-structure 2D electron gas. We split the bilayer Hamiltonian into SU(4)-symmetric part and the anisotropy part and treat the latter as a perturbation. We find that both Goldstone and the charged excitations - skyrmions - are goverened by the non-linear Sigma Model. We calculate the anisotropic energy gap of the skyrmion to have a prominent minimum in the canted antiferromagnetic phase of bilayer. We compare our findings with the results of recent experiments.
dc.descriptionlatex, 25 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0003120
dc.identifierhttp://arxiv.org/abs/cond-mat/0003120
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16129
dc.subjectMesoscale and Nanoscale Physics
dc.titleConductivity activation energy for bilayer hetero-structures at integer filling numbers
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