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High-frequency oscillations in low-dimensional conductors and semiconductor superlattices induced by current in stack direction

S. N. Artemenko·S. V. Remizov
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Abstract

A narrow energy band of the electronic spectrum in some direction in low-dimensional crystals may lead to a negative differential conductance and N-shaped I-V curve that results in an instability of the uniform stationary state. A well-known stable solution for such a system is a state with electric field domain. We have found a uniform stable solution in the region of negative differential conductance. This solution describes uniform high-frequency voltage oscillations. Frequency of the oscillation is determined by antenna properties of the system. The results are applicable also to semiconductor superlattices.

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S. N. Artemenko, S. V. Remizov. 2005-12-19. High-frequency oscillations in low-dimensional conductors and semiconductor superlattices induced by current in stack direction. https://doi.org/10.1103/physrevb.72.245412

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