Aluminium Nanowires: Influence of Work Hardening on Conductance Histograms
I.K. Yanson, O.I. Shklyarevskii, J. M. van Ruitenbeek, S. Speller
TL;DR
This study investigates how work hardening affects the conductance histograms of aluminium nanowires, revealing quantized peaks consistent with atomic discreteness and numerical calculations.
Contribution
It demonstrates the influence of work hardening on conductance quantization in aluminium nanowires and correlates experimental peaks with atomic-scale calculations.
Findings
Conductance histograms show up to 11 equidistant peaks.
Peak spacing matches atomic discreteness predictions.
Results support atomic origin of conductance quantization.
Abstract
Conductance histograms of work-hardened Al show a series up to 11 equidistant peaks with a period of 1.15 +/- 0.02 of the quantum conductance unit G_0 = 2e^2/h. Assuming the peaks originate from atomic discreteness, this agrees with the value of 1.16 G_0 per atom obtained in numerical calculations by Hasmy et al.
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