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Two dimensional topological insulator in quantizing magnetic fields

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 نشر من قبل Eugene Olshanetsky
 تاريخ النشر 2017
  مجال البحث فيزياء
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The effect of quantizing magnetic field on the electron transport is investigated in a two dimensional topological insulator (2D TI) based on a 8 nm (013) HgTe quantum well (QW). The local resistance behavior is indicative of a metal-insulator transition at $Bapprox 6$ T. On the whole the experimental data agrees with the theory according to which the helical edge states transport in a 2D TI persists from zero up to a critical magnetic field $B_c$ after which a gap opens up in the 2D TI spectrum.

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