Cyclotron emission from quantized hall devices: injection of nonequilibrium electrons from contacts

Physical Review B - Condensed Matter and Materials Physics

Volumn 59, Issue 19, 1999, Pages 12537-12546

  Komiyama, S ^a   Hisanaga, Y ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001634825     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.12537     Document Type: Article

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28. This statement does not imply that the “local current distribution” is finite only at the edge states for (Formula presented) The “local current distribution” usually refers to the local change of the current density from the equilibrium state (Ref. 25), which in the present model is uniformly distributed over the full width of the conductor.
29. At absolute zero temperature and without electron-electron scattering, no electrons (holes) would be excited above (Formula presented) (below (Formula presented), so that (Formula presented) would be predicted for the threshold value of the CE. In reality, however, electrons (holes) can be excited beyond (Formula presented) (below (Formula presented) via the electron-electron scattering once nonequilibrium electrons are introduced. The CE is therefore expected to occur for (Formula presented)
30. It is possible that the threshold (Formula presented) value for (Formula presented) is somewhat larger than (Formula presented) because higher local electric fields may be required for the Zener-type tunneling processes to occur. However, this does not substantially alter the discussion of this work.
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