Two-dimensional superconductivity at the (111) LaAlO3/SrTiO3 interface
A. M.R.V.L. RinconVieiraLugarinhoMonteiro (TU Delft - QN/Caviglia Lab)
Dirk J. Groenendijk (TU Delft - QN/Caviglia Lab)
Inge Groen (Student TU Delft)
Joeri de Bruijckere (TU Delft - QN/van der Zant Lab)
R Gaudenzi (TU Delft - QN/van der Zant Lab)
Herre S.J. van der Zant (TU Delft - QN/van der Zant Lab)
Andrea Caviglia (TU Delft - QN/Caviglia Lab)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
We report on the discovery and transport study of the superconducting ground state present at the (111)LaAlO3/SrTiO3 (LAO/STO) interface. The superconducting transition is consistent with a Berezinskii-Kosterlitz-Thouless transition and its two-dimensional nature is further corroborated by the anisotropy of the critical magnetic field, as calculated by Tinkham. The estimated superconducting layer thickness and coherence length are 10 and 60nm, respectively. The results of this work provide insight to clarify the microscopic details of superconductivity in LAO/STO interfaces, in particular in what concerns the link with orbital symmetry.
help_outline