scholarly journals Edge-induced magnetoplasmon excitation in a two-dimensional electron gas under quantum Hall conditions

2011 ◽  
Vol 84 (3) ◽  
Author(s):  
Christian Notthoff ◽  
Dirk Reuter ◽  
Andreas D. Wieck ◽  
Axel Lorke
2004 ◽  
Vol 19 (9) ◽  
pp. 1153-1160 ◽  
Author(s):  
H van Zalinge ◽  
R W van der Heijden ◽  
J H Wolter ◽  
B Özyilmaz ◽  
A Böhm ◽  
...  

2000 ◽  
Vol 61 (16) ◽  
pp. 10910-10916 ◽  
Author(s):  
G. H. Kim ◽  
J. T. Nicholls ◽  
S. I. Khondaker ◽  
I. Farrer ◽  
D. A. Ritchie

1990 ◽  
Vol 64 (20) ◽  
pp. 2434-2437 ◽  
Author(s):  
W. Chen ◽  
M. Fritze ◽  
A. V. Nurmikko ◽  
D. Ackley ◽  
C. Colvard ◽  
...  

1989 ◽  
Vol 03 (08) ◽  
pp. 1129-1154
Author(s):  
F. KUCHAR

Experimental techniques for studying the two-dimensional electron gas in semiconductor heterostructures and MOSFETs at microwave and millimeterwave frequencies are reviewed. The phenomena described concern electrical conductivity, carrier mobility, cyclotron resonance, quantum Hall effect, depolarisation effects, and electron spin resonance.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Hailong Fu ◽  
Yijia Wu ◽  
Ruoxi Zhang ◽  
Jian Sun ◽  
Pujia Shan ◽  
...  

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.


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