Dresden 2006 – wissenschaftliches Programm
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SYNW: Nano Wires
SYNW 1: Symposium: Nano-Wires I
SYNW 1.2: Hauptvortrag
Mittwoch, 29. März 2006, 14:30–15:00, HSZ 04
Quantum coherent transport in semiconductor nanowires — •Silvano De Franceschi1, Jorden van Dam2, Yong-Joo Doh2, Leo Kouwenhoven2, Aarnoud Roest3, and Erik Bakkers3 — 1CNR TASC-INFM, Trieste, Italy — 2Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands — 3Philips Research Laboratories, Eindhoven, The Netherlands
Much of the recent interest for chemically grown semiconductor nanowires arises from their huge versatility which translates into a wide range of potential applications. Many important proofs of concept have already been provided such as field effect transistors, elementary logic circuits, resonant tunneling diodes, light emitting diodes, lasers, and biochemical sensors. These achievements, together with the recent advance in the monolithic integration of III-V nanowires with standard Si technology, may open the way to the development of next-generation (opto)electronics. On the other hand, the high degree of freedom in nanowire growth and device engineering creates new opportunities for the fabrication of controlled one-dimensional systems for low-temperature applications and fundamental science. Here I will present an overview of this emerging field with an emphasis on the electronic transport properties of III-V nanowires. In particular I will report on single-electron transport, quantum confinement, and the recent observation of a tunable Josephson effect in superconductor-nanowire-superconductor devices.