DISORDER POINT FOR 2D ELECTRONS IN A HALF-FILLED LANDAU-LEVEL
Data(s) |
1991
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Resumo |
Short-range correlations of two-dimensional electrons in a strong magnetic field are shown to be triangular in nature well below half-filling, but honeycomb well above half-filling. The half-filling point is thus proposed, and qualitatively confirmed by three-body correlation calculations, to be a new type of disorder point where short-range correlations change character. A wavefunction study also suggests that nodes become unbound at half-filling. Evidence for incompressibility but deformability of the half-filling state earlier suggested by Fano, Ortolani and Tosatti, is also presented and found to be in agreement with recent experiments. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
CHEN CD; TOSATTI E.DISORDER POINT FOR 2D ELECTRONS IN A HALF-FILLED LANDAU-LEVEL,PHYSICA A,1991,172(3):336-347 |
Palavras-Chave | #半导体物理 #FRACTIONAL QUANTIZATION #FILLING FACTORS #STATES #HIERARCHY #SYSTEM #FLUID |
Tipo |
期刊论文 |