Conductance peak density in nanowires

Abstract

We present a complete numerical calculation and an experimental data analysis of the universal conductance fluctuations in quasi-one-dimensional nanowires. The conductance peak density model, introduced in nanodevice research by Ramos et al. Phys. Rev. Lett. 107, 176807 (2011), is applied successfully to obtain the coherence length of InAs nanowire magnetoconductance and we prove its equivalence with correlation methods. We show the efficiency of the method and therefore a prominent alternative to obtain the phase-coherence length. The peak density model can be similarly applied to spintronic setups, graphene, and topological isolators where phase-coherence length is a relevant experimental parameter.