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Activation study of the bilayer quantum Hall state

✍ Scribed by A. Fukuda; K. Iwata; T. Sekikawa; T. Arai; N. Kumada; Y. Hirayama; Z.F. Ezawa; A. Sawada

Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 150 KB
Volume: 40
Category: Article
ISSN: 1386-9477
DOI: 10.1016/j.physe.2007.08.119

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✦ Synopsis

We investigated the bilayer fractional quantum Hall state (FQHS) at total Landau level filling factor n ¼ 1 3 , which is interpreted as the bilayer n ¼ 1 integer quantum Hall state (IQHS) of composite fermions. We carried out detailed magnetotransport experiments of the bilayer n ¼ 1 3 FQHS in tilted magnetic field. The data are compared with reported data of the bilayer n ¼ 1 IQHS. We found that the commensurate -incommensurate phase transition, which occurs in the bilayer n ¼ 1 IQHS, is missing in the bilayer n ¼ 1 3 FQHS.

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