Phase transitions in quantum Hall multiple layer systems

Journal Article · Wed Dec 04 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4848397· OSTI ID:22261823

Pusep, Yu A.; Fernandes dos Santos, L. ^[1]; Smirnov, D. ^[2]; Bakarov, A. K.; Toropov, A. I. ^[3]

---

1. Instituto de Fisica de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP (Brazil)
2. National High Magnetic Field Laboratory, Tallahassee, FL 32312 (United States)
3. Institute of Semiconductor Physics, Novosibirsk 630090 (Russian Federation)

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.

• OSTI ID: 22261823
• Journal Information: AIP Conference Proceedings, Vol. 1566, Issue 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEPOLARIZATION
GROUND STATES
HALL EFFECT
LAYERS
PHASE TRANSFORMATIONS
PHOTOLUMINESCENCE
SKYRME POTENTIAL
SOLITONS