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Quantum transport in ballistic conductors: evolution from conductance quantization to resonant tunneling

Branislav K. Nikolic·Philip B. Allen
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Abstract

We study the transport properties of a three dimensional atomic-scale contact in the ballistic regime. The results for the conductance and related transmission eigenvalues show how the properties of the ideal semi-infinite leads (i.e. measuring device) as well as the coupling between the leads and the conductor influence the transport in a two-probe geometry. We observe the evolution from conductance quantization to resonant tunneling conductance peaks upon changing the hopping parameter in the disorder-free tight-binding Hamiltonian which describes the leads and the coupling to the sample.

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Branislav K. Nikolic, Philip B. Allen. 2000-05-25. Quantum transport in ballistic conductors: evolution from conductance quantization to resonant tunneling. https://doi.org/10.1088/0953-8984%2F12%2F46%2F310

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