Shot noise in resonant tunneling through a zero-dimensional state with a complex energy spectrum
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Date
2004
Volume
69
Issue
11
Journal
Physical Review B 69 (2004), Nr. 11
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Publisher
College Park, MD : American Physical Society
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Abstract
We investigate the noise properties of a GaAs/AlxGa 1-xAs resonant-tunneling structure at bias voltages where the current characteristic is determined by single electron tunneling. We discuss the suppression of the shot noise in the framework of a coupled two-state system. For large bias voltages we observe super-Poissonian shot noise up to values of the Fano factor α≈ 10.
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