Ballistic composite fermions in semiconductor nanostructures

Article

关键词: LANDAU-LEVEL;    HALL;    HIERARCHY;    STATES;    WIRES;   

DOI  :  10.1103/PhysRevB.53.9602

来源: SCIE

【 摘 要 】

We report the results of two fundamental transport measurements at a Landau level filling factor nu of 1/2. The well-known ballistic electron transport phenomena of quenching of the Hall effect in a mesoscopic cross-junction and negative magnetoresistance of a constriction are observed close to B=0 and nu=1/2. The experimental results demonstrate semiclassical charge transport by composite fermions, which consist of electrons bound to an even number of flux quanta.

【 授权许可】

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