Interface superconductivity

• We discuss interfacial superconductivity, a field boosted by the discovery of the superconducting interface between LaAlO.
• This system allows the electric field control and the on/off switching of the superconducting state.
• We compare superconductivity at the interface and in bulk doped SrTiO.
• We discuss the role of the interfacially induced Rashba type spin–orbit.
• We briefly discuss superconductivity in cuprates, in electrical double layer transistor field effect experiments.
• Recent observations of a high Tc in a monolayer of FeSe deposited on SrTiO3 are presented.

Low dimensional superconducting systems have been the subject of numerous studies for many years. In this article, we focus our attention on interfacial superconductivity, a field that has been boosted by the discovery of superconductivity at the interface between the two band insulators LaAlO3 and SrTiO3. We explore the properties of this amazing system that allows the electric field control and on/off switching of superconductivity. We discuss the similarities and differences between bulk doped SrTiO3 and the interface system and the possible role of the interfacially induced Rashba type spin–orbit. We also, more briefly, discuss interface superconductivity in cuprates, in electrical double layer transistor field effect experiments, and the recent observation of a high Tc in a monolayer of FeSe deposited on SrTiO3.