scholarly journals Stability of the Compressible Quantum Hall State around the Half-Filled Landau Level

1999 ◽  
Vol 82 (21) ◽  
pp. 4292-4295 ◽  
Author(s):  
Kenzo Ishikawa ◽  
Nobuki Maeda ◽  
Tetsuyuki Ochiai
Keyword(s):  
Landau Level ◽  
Quantum Hall ◽  
Quantum Hall State

scholarly journals Inter-Landau-level Andreev Reflection at the Dirac Point in a Graphene Quantum Hall State Coupled to a NbSe2 Superconductor

2018 ◽  
Vol 121 (8) ◽  
Author(s):  
Manas Ranjan Sahu ◽  
Xin Liu ◽  
Arup Kumar Paul ◽  
Sourin Das ◽  
Pratap Raychaudhuri ◽  
...  
Keyword(s):  
Landau Level ◽  
Andreev Reflection ◽  
Dirac Point ◽  
Quantum Hall ◽  
Quantum Hall State

DESTRUCTION OF CORRELATED BILAYER STATES SUBJECTED TO TILTED MAGNETIC FIELDS

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3693-3698 ◽  
Author(s):  
U. ZEITLER ◽  
J. DE JONGE ◽  
J. W. W. VAN TILBURG ◽  
J. C. MAAN ◽  
D. REUTER ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Landau Level ◽  
Quantum Hall ◽  
Electron System ◽  
Dimensional Electron ◽  
Parallel Magnetic Field ◽  
Strongly Coupled ◽  
Plane Field ◽  
Dimensional Electron System ◽  
Quantum Hall State

We use tilted magnetic fields to effectively decouple a strongly coupled bilayer two-dimensional electron system into two separate layers. For our specific sample (tunnelling gap ΔSAS=2.5 meV ) the inter-layer coupling is quenched by an in-plane field B≈14 T , leading to the successive disappearance of all odd-integer states visible in the quantum Hall effect. Such a transition from a bilayer into two single layers is also observed in a solely parallel magnetic field. Surprisingly, the ν=1 the quantum Hall state remains present even for in-plane fields exceeding 20 T. Only when decreasing the total Landau level filling slightly below ν=1 the system undergoes an abrupt transition from a ν=1 quantum Hall state into two (insulating) systems with a half filled Landau level.

scholarly journals Particle-hole-symmetric model for a paired fractional quantum Hall state in a half-filled Landau level

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
William Hutzel ◽  
John J. McCord ◽  
P. T. Raum ◽  
Ben Stern ◽  
Hao Wang ◽  
...  
Keyword(s):  
Landau Level ◽  
Quantum Hall ◽  
Symmetric Model ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall State
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