This book describes superconductor/two-dimensional-electron-gas structures with the aim of providing a better understanding of their transport properties. The two-dimensional electron gas used for the structures described here is buried either in a III-V semiconductor heterostructure or in an inversion layer at the surface. First, the properties of a single superconductor/two-dimensional-electron-gas structure are discussed on the basis of Andreev reflection and the proximity effect. Then, the properties of superconductor/two-dimensional-electron-gas Josephson junctions are treated. The last part of the book discusses the control of junctions using gate electrodes or injection currents, and the physical effects observed in these junctions.

Klappentext

This book, featuring the most comprehensive treatment of Josephson junctions ever published, describes superconductor/two-dimensional-electron-gas (2DEG) structures, providing a better understanding of their transport properties. It also discusses the control of junctions using gate electrodes or injection currents, and the physical effects observed in these junctions.

Inhalt

Carrier Transport Through a Superconductor/Normal-Conductor Interface.- Fabrication of Superconductor/Two-Dimensional-Electron-Gas Structures.- Transport Studies on Single Superconductor/Two-Dimensional-Electron-Gas Interfaces.- Superconductor/Two-Dimensional-Electron-Gas/Superconductor Junctions: Voltage-Carrying State.- Josephson Current in Superconductor/Two-Dimensional-Electron-Gas Junctions.- Gate-Controlled Superconductor/Two-Dimensional-Electron-Gas Junctions.- Nonequilibrium Josephson Current.- Conclusion.