scholarly journals Temperature dependence of the breakdown of the quantum Hall effect studied by induced currents

2004 ◽  
Vol 70 (7) ◽  
Author(s):  
A. Matthews ◽  
K. Kavokin ◽  
A. Usher ◽  
M. Portnoi ◽  
M. Zhu ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Induced Currents

scholarly journals Induced currents, frozen charges and the quantum Hall effect breakdown

2005 ◽  
Vol 134 (4) ◽  
pp. 257-259 ◽  
Author(s):  
K.V. Kavokin ◽  
M.E. Portnoi ◽  
A.J. Matthews ◽  
A. Usher ◽  
J. Gething ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Induced Currents

Temperature dependence of the bandwidth of delocalized states forn-InGaAs/GaAs in the quantum Hall effect regime

2013 ◽  
Vol 39 (1) ◽  
pp. 50-57 ◽  
Author(s):  
Yu. G. Arapov ◽  
S. V. Gudina ◽  
V. N. Neverov ◽  
S. G. Novokshonov ◽  
A. S. Klepikova ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall

Temperature dependence of the quantum Hall effect in graphene

2008 ◽  
Vol 40 (5) ◽  
pp. 1089-1091 ◽  
Author(s):  
A.J.M. Giesbers ◽  
U. Zeitler ◽  
M.I. Katsnelson ◽  
L.A. Ponomarenko ◽  
T.M.G. Mohiuddin ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall

BREAKDOWN OF THE QUANTUM HALL EFFECTS IN HOLE SYSTEMS AT HIGH INDUCED CURRENTS

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3537-3540 ◽  
Author(s):  
J. D. GETHING ◽  
A. J. MATTHEWS ◽  
A. USHER ◽  
M. E. PORTNOI ◽  
K. V. KAVOKIN ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Eddy Currents ◽  
Energy Gap ◽  
Quantum Hall ◽  
Sweep Rate ◽  
Fractional Quantum Hall ◽  
Hall Effects ◽  
Highly Sensitive ◽  
Induced Currents

The magnetisation of two dimensional hole systems in the quantum Hall regime has been studied using a highly-sensitive torsion balance magnetometer. In a time varying magnetic field eddy currents are induced which become large around integer and fractional filling factors where ρxx takes a very low value. The sweep rate and temperature dependence of these induced currents are in good agreement with the model of quantum Hall effect breakdown proposed recently by Matthews et al. This model also allows comparison between the energy gap at different filling factors and so provides a measurement of the fractional quantum Hall effect energy gap, Δ1/3, and the spin split energy gap, g*μ B B.

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