%0 Journal Article
%T Josephson-like dynamics of the superconducting LaAlO3/SrTiO3 interface
%V 99
%N 10
%P 104515
%X In this article, we show that the two-dimensional electron gas formed at the ${\mathrm{LaAlO}}_{3}/{\mathrm{SrTiO}}_{3}$ interface behaves as a Josephson junction array. In particular, it exhibits a stochastic switching of the superconducting critical current, which qualitatively follows the dynamics of the resistively and capacitively shunted Josephson junction model. The switching current distribution (SCD) has been measured as a function of temperature and back-gate voltage. At low temperatures a clear saturation of the standard deviation of the SCD is observed, possibly indicating the presence of a macroscopic quantum tunneling regime with phase diffusion. Through the gate voltage we modify the damping of the array and compare it to artificial arrays of junctions.
%G en
%J Physical Review B
%A Hurand, S.
%A Jouan, A.
%A Lesne, E.
%A Singh, G.
%A Feuillet-Palma, C.
%A Bibes, M.
%A Barthélémy, A.
%A Lesueur, J.
%A Bergeal, N.
%D 2019/03/19