Fractional quantum Hall effect in a two-dimensional electron-hole fluid

1990 ◽  
Vol 42 (5) ◽  
pp. 3224-3227 ◽  
Author(s):  
A. H. MacDonald ◽  
E. H. Rezayi
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Fractional Quantum Hall Effect ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Hole ◽  
Fractional Quantum ◽  
Fractional Quantum Hall

scholarly journals Electron-hole asymmetric integer and fractional quantum Hall effect in bilayer graphene

Science ◽  
2014 ◽  
Vol 345 (6192) ◽  
pp. 55-57 ◽  
Author(s):  
A. Kou ◽  
B. E. Feldman ◽  
A. J. Levin ◽  
B. I. Halperin ◽  
K. Watanabe ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Bilayer Graphene ◽  
Fractional Quantum Hall Effect ◽  
Many Body ◽  
Electron Hole ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Lowest Landau Level

The nature of fractional quantum Hall (FQH) states is determined by the interplay between the Coulomb interaction and the symmetries of the system. The distinct combination of spin, valley, and orbital degeneracies in bilayer graphene is predicted to produce an unusual and tunable sequence of FQH states. Here, we present local electronic compressibility measurements of the FQH effect in the lowest Landau level of bilayer graphene. We observe incompressible FQH states at filling factors ν = 2p + 2/3, with hints of additional states appearing at ν = 2p + 3/5, where p = –2, –1, 0, and 1. This sequence breaks particle-hole symmetry and obeys a ν → ν + 2 symmetry, which highlights the importance of the orbital degeneracy for many-body states in bilayer graphene.

scholarly journals Fractional quantum Hall effect in bilayer two-dimensional hole-gas systems

1996 ◽  
Vol 54 (8) ◽  
pp. R5259-R5262 ◽  
Author(s):  
A. R. Hamilton ◽  
M. Y. Simmons ◽  
F. M. Bolton ◽  
N. K. Patel ◽  
I. S. Millard ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Fractional Quantum Hall Effect ◽  
Two Dimensional ◽  
Fractional Quantum ◽  
Fractional Quantum Hall

The fractional quantum Hall effect in high mobility two-dimensional hole gases

1992 ◽  
Vol 263 (1-3) ◽  
pp. 81-86 ◽  
Author(s):  
A.G. Davies ◽  
R. Newbury ◽  
M. Pepper ◽  
J.E.F. Frost ◽  
D.A. Ritchie ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
High Mobility ◽  
Fractional Quantum Hall Effect ◽  
Two Dimensional ◽  
Fractional Quantum ◽  
Fractional Quantum Hall

CORRELATION AND LOCALIZATION OF TWO-DIMENSIONAL ELECTRONS IN A STRONG MAGNETIC FIELD

1990 ◽  
Vol 04 (05) ◽  
pp. 301-310 ◽  
Author(s):  
D. C. TSUI
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Fractional Quantum Hall Effect ◽  
Two Dimensional ◽  
Quantum Liquid ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Integral Quantum

This paper gives a brief review of some recent experiments on the localization-delocalization transition in the integral quantum Hall effect and the new quantum liquid ground states giving rise to the fractional quantum Hall effect.

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