Fig. 4From: Thermal stability of 2DEG at amorphous LaAlO3/crystalline SrTiO3 heterointerfaces I–V characteristics of a a-TiOx/a-LAO/STO, b a-SiOx/a-LAO/STO, c a-AlOx/a-LAO/STO and d a-SnOx/a-LAO/STO heterostructures after annealing at various temperatures under the oxygen pressure of 300 Torr. The thickness of the MeOx overlayers is 100 nm and the a-LAO layer is 5-nm-thickBack to article page