Observation of $h/e$ conductance oscillations in disordered metallic $T_3$ network

TL;DR

This study reports the observation of $h/e$ conductance oscillations in a disordered metallic $T_3$ network, extending understanding of quantum interference effects in complex metallic structures.

Contribution

First experimental detection of $h/e$ oscillations in a disordered $T_3$ network, highlighting novel quantum interference phenomena beyond conventional AAS oscillations.

Findings

$h/e$ oscillations observed up to 8 T magnetic field

Superimposed $h/2e$ and $h/e$ oscillations in the network

Proposed multiple interpretations for the $h/e$ oscillations

Abstract

We report on magnetotransport measurements performed on a large metallic two-dimensional $\mathcal{T}_{3}$ network. Superimposed on the conventional Altshuler-Aronov-Spivak (AAS) oscillations of period $h/2e$, we observe clear $h/e$ oscillations in magnetic fields up to $8 T$. Different interpretations of this phenomenon are proposed.