Current oscillation in superlattices with different miniband widths
作者： E Schomburg , T Blomeier , K Hofbeck , J Grenzer , S Brandl
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摘要: We report on current oscillation at microwave frequencies in n-doped wide-miniband GaAs/AlAs superlattices. found that, with increasing miniband width (16--72 meV), the frequency increased (from 2 to 53 GHz). An analysis of transport, making use continuity and Poisson equation, indicates that was due propagating dipole domains corresponded transit domains.
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