Electronic instabilities in the hot-electron regime of the one-dimensional ballistic resistor
R J Brown; M J Kelly; M Pepper; H Ahmed; D G Hasko; D C Peacock; J E F Frost; D A Ritchie; G A C Jones; R J Brown; Cavendish Lab., Cambridge Univ., UK; M J Kelly; Cavendish Lab., Cambridge Univ., UK; M Pepper; Cavendish Lab., Cambridge Univ., UK; H Ahmed; Cavendish Lab., Cambridge Univ., UK; D G Hasko; Cavendish Lab., Cambridge Univ., UK; D C Peacock; Cavendish Lab., Cambridge Univ., UK; J E F Frost; Cavendish Lab., Cambridge Univ., UK; D A Ritchie; Cavendish Lab., Cambridge Univ., UK; G A C Jones; Cavendish Lab., Cambridge Univ., UK
Журнал:
Journal of Physics: Condensed Matter
Дата:
1989-09-04
Аннотация:
The authors provide evidence for both voltage- and current-controlled negative differential resistance instabilities in the one-dimensional ballistic resistor driven into the hot-electron regime. Quantum reflections are used to explain the former effect, while extra electron subbands provide the current 'filaments' in the latter case.
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