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Capacitance between adjacent edge channels at quantum Hall plateaux

โœ Scribed by K. Oto; K. Arai; S. Uno; S. Takaoka; K. Murase

Book ID
104306599
Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
293 KB
Volume
47
Category
Article
ISSN
0167-9317

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โœฆ Synopsis

Machikaneyama, Toyonaka, 560-0043 Japan We have measured the capacitance between adjacent edge channels (Cd in the GaAs/AlGaAs two dimensional electron gas under the quantum Hall plateau condition to investigate the structure of edge channels.

The value of Chrl is determined by the energy relaxation length of adjacent edge channels and the ratio of edge channel width to the separation between them.

The separation lengths between the adjacent edge channels at v=2 and 4 have been estimated from the information of both CM and the total width of edge channels.

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