Beschrijving

The present book covers the transport properties of superconductor/two dimensional electron gas Josephson junctions. Employing a two dimensional electron gas in a semiconductor as a normal conductor opens up the possibility to observe effects not found in purely metallic junctions.

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.