Magnetic Flux Quantization in the Weak-Localization Regime of a Nonsuperconducting Metal

Abstract

The magnetic flux quantization effect, with period ${\ensuremath{\varphi}}_{0}=\frac{\mathrm{hc}}{2e}$, is observed with high accuracy in the resistance of a Mg honeycomb network at temperatures $50 \mathrm{mK}<~T<~6 \mathrm{K}$. As expected, the phase of the oscillations and the sign of the magnetoresistance are dominated by the spin-orbit interaction. Our results confirm, for a new geometry, the reality of the Bohm-Aharonov effect for a nonsuperconducting metal in the weak-localization regime.