scholarly journals New fractional quantum Hall state in double-layer two-dimensional electron systems

1992 ◽  
Vol 68 (9) ◽  
pp. 1383-1386 ◽  
Author(s):  
J. P. Eisenstein ◽  
G. S. Boebinger ◽  
L. N. Pfeiffer ◽  
K. W. West ◽  
Song He
Keyword(s):  
Double Layer ◽  
Quantum Hall ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall State ◽  
Two Dimensional Electron Systems

Nature of localized states in two-dimensional electron systems in the quantum Hall regime: Acoustic studies

2017 ◽  
Vol 43 (1) ◽  
pp. 86-94
Author(s):  
I. L. Drichko ◽  
I. Yu. Smirnov ◽  
A. V. Suslov ◽  
Y. M. Galperin ◽  
L. N. Pfeiffer ◽  
...  
Keyword(s):  
Quantum Hall ◽  
Localized States ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Quantum Hall Regime ◽  
Hall Regime ◽  
Two Dimensional Electron Systems

scholarly journals 3/2 fractional quantum Hall plateau in confined two-dimensional electron gas

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Hailong Fu ◽  
Yijia Wu ◽  
Ruoxi Zhang ◽  
Jian Sun ◽  
Pujia Shan ◽  
...  
Keyword(s):  
Electron Gas ◽  
Quantum Hall ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Fractional Quantum ◽  
Edge Structure ◽  
Fractional Quantum Hall ◽  
Lateral Confinement ◽  
Dimensional Electron Gas

Abstract Even-denominator fractional quantum Hall (FQH) states, such as 5/2 and 7/2, have been well known in a two-dimensional electron gas (2DEG) for decades and are still investigated as candidates of non-Abelian statistics. In this paper, we present the observation of a 3/2 FQH plateau in a single-layer 2DEG with lateral confinement at a bulk filling factor of 5/3. The 3/2 FQH plateau is quantized at $$\left( {\frac{h}{{e^2}}} \right)/\left( {\frac{3}{2}} \right)$$ h e 2 ∕ 3 2 within 0.02%, and can survive up to 300 mK. This even-denominator FQH plateau may imply intriguing edge structure and excitation in FQH system with lateral confinement. The observations in this work demonstrate that understanding the effect of the lateral confinement on the many-body system is critical in the pursuit of important theoretical proposals involving edge physics, such as the demonstration of non-Abelian statistics and the realization of braiding for fault-tolerant quantum computation.

Sign in / Sign up

Export Citation Format

Share Document