Polar Liquid Molecule Induced Transport Property Modulation at LaAlO_3/SrTiO_3 Heterointerface

摘要

New and unexpected physical properties that are absent in their individual bulk constituents have triggered intensive research interest in polar oxide heterointerfaces. One sparkling example is the discovery of two-dimensional electron gas (2DEG) generated at the interface between two band insulators, LaAlO_3 (LAO) and SrTiO_3 (STO), which has revealed intriguing electronic properties and a rich superconducting phase diagram at low temperature.