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Quantum conductance fluctuations in 3d ballistic adiabatic wires

Research output: Contribution to journalJournal article

<mark>Journal publication date</mark>11/1992
<mark>Journal</mark>Solid State Communications
Issue number8
Number of pages3
Pages (from-to)835-837
<mark>Original language</mark>English


We predict quantum conductance fluctuations in three-dimensional (3D) adiabatic wires rising from fluctuations in the energy spectrum of size-quantized electron motion across the channel. These fluctuations could be observed as random oscillations in the voltage dependence of the differential conductance dI/dV or the magnetic field dependence. They obey Poisson or Wigner-Dyson statistics depending on the cross sectional shape of the wire and can have an amplitude which exceeds the universal e2/h value.