Print Email Facebook Twitter Electronic and superconducting properties of the two-dimensional electron system at the LaAlO3/SrTiO3(111) interface Title Electronic and superconducting properties of the two-dimensional electron system at the LaAlO3/SrTiO3(111) interface Author Groen, I. Contributor Caviglia, A.D. (mentor) Faculty Applied Sciences Department Applied Physics Date 2016-05-17 Abstract "This thesis describes research that was executed as a combined Master Research Project in Applied Physics and Materials Science and Engineering, leading up to a double MSc degree." The (100)-oriented LaAlO3/SrTiO3 (LAO/STO) interface has been subject of intense study since the discovery of the two-dimensional electron system (2DES) in this heterostructure. Recently, it has been observed that the LAO/STO(111) interface also hosts a 2DES but its physical properties are relatively unexplored. This work presents a systematic magnetotransport study on the 2DES of this structure. We report on superconductivity in a patterned interface with a 10 uc LAO thin film. The evolution of the superconducting phase at the LAO/STO(111) interface is under investigation. The superconducting phase is observed to be gate tunable and, at optimal doping, the BKT temperature, the maximum critical current and the critical magnetic field are observed to be ~70 mK, ~ 200 nA and ~21 mT, respectively. Furthermore, we observe that interface conduction can be modelled by a random array of Josephson junctions formed by superconducting puddles due to the inhomogeneous character of the interface. Subject superconductivitycomplex oxidesinterfaceLaAlO3SrTiO3magnetotransport To reference this document use: http://resolver.tudelft.nl/uuid:3f44e2d2-e31f-4e1c-915b-c455d4ca9e41 Part of collection Student theses Document type master thesis Rights (c) 2016 Groen, I. Files PDF Thesis_final_IG.pdf 11.5 MB Close viewer /islandora/object/uuid:3f44e2d2-e31f-4e1c-915b-c455d4ca9e41/datastream/OBJ/view