One dimensional density of states in a field induced 2D hole gas

The field-induced two-dimensional (2D) hole gas in stage two bromine graphite intercalation compounds displays strikingly different properties from the 2D systems in Si inversion layers or GaAs quantum wells: sharp susceptibility spikes vs. quantum Hall effect. We show that in the former case, indiv...

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Bibliographic Details
Published in:Solid state communications 1989, Vol.70 (4), p.423-426
Main Authors: Maheswaran, B, Markiewicz, R.S
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Physics
Surface and interface electron states
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Summary:The field-induced two-dimensional (2D) hole gas in stage two bromine graphite intercalation compounds displays strikingly different properties from the 2D systems in Si inversion layers or GaAs quantum wells: sharp susceptibility spikes vs. quantum Hall effect. We show that in the former case, individual Landau levels have a finite linewidth due to residual one-dimensional band dispersion along the field direction. Hence disorder plays only a small role in this system.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(89)91072-7