Abstract
Ballistic transport of electrons has been experimentally observed in InAlAs/InAs core-shell nanowires. The presence of InAlAs epitaxial shells offers significant improvement to the quality of nanoelectronic devices, leading to the quantum interference in phase coherent electron transport. Regular conductance oscillations are observed due to Fabry-Perot interference by the resonant transmission via quantized states in 1D sub-bands of the InAs nanowire. The simulated transmission of resonance tunneling matches the experimentally observed conductance oscillation patterns, implying the Fabry-Perot interference and ballistic nature of the observed electron transport.
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