Nanoscale Coulomb blockade memory and logic devices
نویسندگان
چکیده
منابع مشابه
Coulomb Blockade and Digital Single-Electron Devices
Tunneling of single electrons has been thoroughly studied both theoretically and experimentally during last ten years. By the present time the basic physics is well understood, and creation of useful single-electron devices becomes the important issue. Single-electron tunneling seems to be the most promising candidate to be used in the future integrated digital circuits with the typical size sc...
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The conductance through a small grain weakly coupled to metallic leads shows periodic dependence on the voltage applied to a gate electrode. This phenomenon is observed in both metallic' and semiconductor 2 devices, and is commonly referred to as the Coulomb blockade. This behavior of conductance is caused by electrostatic energy arising due to a change in the charge of the grain (quantum dot) ...
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Semiconductor nanowires provide promising low-dimensional systems for the study of quantum transport phenomena in combination with superconductivity. Here we investigate the competition between the Coulomb blockade effect, Andreev reflection, and quantum interference, in InAs and InP nanowires connected to aluminum-based superconducting electrodes. We compare three limiting cases depending on t...
متن کاملOperation of logic function in a Coulomb blockade device
This letter presents the experimental demonstration of a Coulomb blockade ~CB! logic device. Our logic architecture consists of an array of current pathways, controlled by CB switching nodes. In this architecture, high gain is not required to transmit information, making it well suited to the CB device. Each CB node is switched between a blockaded state and a completely pinched-off state, minim...
متن کاملSingle-electron logic and memory devices
Single-electronics is believed to be the leading candidate for future digital electronics which will be able to operate at 10 nm size scale and below. However, the problems of integrated single-electronics are quite serious whereby the future prospects are still uncertain. In this paper we discuss the operation principles and required parameters of several proposed families of single-electron l...
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ژورنال
عنوان ژورنال: Nanotechnology
سال: 2001
ISSN: 0957-4484,1361-6528
DOI: 10.1088/0957-4484/12/2/317