journal article Feb 08, 1988

Quantum capacitance devices

Applied Physics Letters Vol. 52 No. 6 pp. 501-503 · AIP Publishing
Abstract
Two-dimensional electron gas (2DEG) in a quantum well or inversion layer, unlike an ordinary grounded metallic plane, does not completely screen an applied transverse electric field. Owing to its Fermi degeneracy energy, a 2DEG manifests itself as a capacitor in series, whose capacitance per unit area equals CQ=me2/πℏ2, where m is the effective electron mass in the direction transverse to the quantum well. Partial penetration of an external field through a highly conducting 2DEG allows the implementation of several novel high-speed devices, including a three-terminal resonant-tunneling transistor and a gate-controlled thermionic emission transistor.
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Metrics
811
Citations
14
References
Details
Published
Feb 08, 1988
Vol/Issue
52(6)
Pages
501-503
Cite This Article
Serge Luryi (1988). Quantum capacitance devices. Applied Physics Letters, 52(6), 501-503. https://doi.org/10.1063/1.99649
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