ABSTRACT
Complex oxides have been a continual source of discoveries in solid state physics. Recent advances in thin-film growth techniques have enabled unit cell-level control over their composition, resulting in the creation of layered, complex oxide heterostructures. Emergent phenomena—properties or phases observed only within heterostructures and not found in the parent compounds—provide a recurring theme for this active interdisciplinary field that spans materials science, physics, chemistry, and engineering. One of the most striking, and controversial, examples of an emergent property is the observation of magnetism at the interface formed between the two complex oxides LaAlO3 and SrTiO3. Both materials are separately nonmagnetic, and yet there are many reports of magnetic phenomena associated with the LaAlO3/SrTiO3 interface. *
