Low Temperature Transport of LaAlO$_3$/SrTiO$_3$ interfaces

The conducting interface between the two band insulators LaAlO$_3$ and SrTiO$_3$ has drawn a large share of attention, as it presents a variety of exciting electronic properties that are tunable by an electric field [1]. At low temperatures, magnetotransport analysis has revealed a strong Rashba spin-orbit interaction originating from the breaking of inversion symmetry [2] and, in field effect devices, the ground state has been tuned from an insulating to a superconducting state. I will discuss these results in light of recent magnetotransport experiments in field-effect devices to probe the evolution across the phase diagram of the weak localization /weak anti-localization transport regime, its relation to the strength and anisotropy of the superconducting state. \\[4pt] [1] A. D. Caviglia \textit{et al.}, Nature \textbf{456}, 624 (2008).\\[0pt] [2] A. D. Caviglia \textit{et al.}, Phys. Rev. Lett. \textbf{104}, 126803 (2010); A. F\^ete \textit{et al.}, Phys. Rev. B \textbf{86}, 201105 (2012).