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Peak-to-valley ratio of small resonant-tunneling diodes with various barrier-thickness asymmetries

Applied Physics Letters, ISSN: 0003-6951, Vol: 68, Issue: 6, Page: 838-null
1995
  • 20
    Citations
  • 0
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  • 5
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Metrics Details

  • Citations
    20
    • Citation Indexes
      20
  • Captures
    5

Article Description

Resonant tunneling through small double-barrier heterostructures is investigated in dependence of the charge accumulation in the quantum well and the device diameter. The study comprises a series of resonant-tunneling diodes with four different barrier-thickness ratios and diameters between 300 nm and 10 μm. Special emphasis lies on the peak-to-valley ratio of the resonant-tunneling current peaks, which drops drastically with decreasing device diameter for weak electron accumulation, while it is size independent in the strong-charging case. © 1996 American Institute of Physics.

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