1. Phase transitions in quantum Hall multiple layer systems
- Author
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A. K. Bakarov, Dmitry Smirnov, L. Fernandes dos Santos, Yuri A. Pusep, and A. I. Toropov
- Subjects
Physics ,Condensed Matter::Materials Science ,Phase transition ,Photoluminescence ,Condensed matter physics ,Quantum spin Hall effect ,Condensed Matter::Other ,Hall effect ,Fractional quantum Hall effect ,Topological order ,Quantum Hall effect ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,Ground state - Abstract
Polarized photoluminescence from multiple well electron systems was studied in the regime of the integer quantum Hall effect. Two quantum Hall ferromagnetic ground states assigned to the uncorrelated miniband quantum Hall state and to the spontaneous interwell phase coherent dimer quantum Hall state were observed. The photoluminescence associated with these states exhibits features caused by finite-size skyrmions. The depolarization of the ferromagnetic ground state was observed in bilayer system.
- Published
- 2013
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