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Dynamic dc voltage band observed within each current branch in the transition from static to dynamic electric-field domain formation in a doped GaAs/AlAs superlattice
1.The applied electric-field distribution across the superlattice is not uniform and is broken up into different regions, which are called electric-field domains. Static electric-field domain formation corresponds to the stable domain boundary, while dynamic electric-field domain formation corresponds to the unstable domain boundary.
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10.Negative differential resistance means the current decreases as applied voltage increases.
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12.The dynamic voltage bandwidth is defined as the voltage range in which the current oscillates with time at a fixed dc bias.
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