Superconductor/Semiconductor Junctions

1. Auflage. Softcover version of original hardcover Auflage 2001
ISBN: 978-3-642-07586-5
Verlag: Springer

Buch, Englisch, Band 174, 150 Seiten, Paperback, Format (B × H): 155 mm x 235 mm, Gewicht: 254 g

Reihe: Springer Tracts in Modern Physics

The present book covers the transport properties of superconductor/two dimensional electron gas Josephson junctions. Starting with the basic el ement, a superconductor/two dimensional electron gas interface, phase co herent Andreev reflection in hybrid Josephson junctions is introduced and further on, multiterminal structures are discussed. Special care is taken on explaining the underlying theoretical concepts related to the transport mech anisms. 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. One example is the light sensitivity of the semi conductor, which has a direct impact on the supercurrent in the Josephson junction. Many of the effects reported here rely on the fast technological progress in the epitaxial growth of III V semiconductor heterostructures. By using these layer systems, fascinating quantum effects have been found. Two examples out of many are the quantized conductance in a point contact and electron optics using ballistic electron beams. By combining heterostructures with su perconductors, many of the effects found in purely semiconductor systems can in a sense, be transferred to the superconducting state. A prominent example is the quantization of the critical current in a superconducting quantum point contact.

Zielgruppe

Research

Autoren/Hrsg.

Schäpers, Thomas

Fachgebiete

• Naturwissenschaften Physik Elektromagnetismus Halbleiter- und Supraleiterphysik
• Technische Wissenschaften Elektronik | Nachrichtentechnik Elektronik Elektronische Baugruppen, Elektronische Materialien
• Technische Wissenschaften Elektronik | Nachrichtentechnik Elektronik Halb- und Supraleitertechnologie
• Naturwissenschaften Physik Thermodynamik Festkörperphysik, Kondensierte Materie
• Naturwissenschaften Physik Thermodynamik Oberflächen- und Grenzflächenphysik, Dünne Schichten

Inhaltsverzeichnis

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.