Posts Tagged Molecular Electronics

Tinkertoys to Solid Circuits – Microcircuitry in the 1950s

Posted by on Tuesday, 8 June, 2010

[Recorded: May 6, 2009] The computer chip we know today initially emerged from Cold War demands for improved reliability, performance, and miniaturization of electronics systems. The later 1950s witnessed diverse efforts to pack components into tiny modules and to integrate multiple components in a single slice of semiconductor material. Fierce technological competition between these different approaches to microcircuitry — from Tinkertoys to Molecular Electronics to Solid Circuits — resulted in the planar integrated circuit of today. In this lecture, Michael Riordan, co-author of Crystal Fire, first reviews the broad efforts toward microminiaturization of the early 1950s. Next, John Hollar, CHM CEO and David Laws chair a panel discussion between: Charles E. Phipps, former VP Marketing, Texas Instruments and General Partner, Sevin Rosen Funds Jay W. Lathrop, former DOFL and Texas Instruments scientist, Professor Emeritus Clemson University L. Arthur D’Asaro, former senior scientist at Bell Telephone Laboratories

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Magnetic “superatom” may lead to molecular electronic devices

Posted by on Tuesday, 16 June, 2009

superatom
Scientists at Virginia Commonwealth University have revealed in the journal Nature Chemistry that they’ve created a “magnetic superatom”, or “a stable cluster of atoms that can mimic different elements of the periodic table”. The poor Periodic Table of the Elements barely gets any respect as it is from the kids today (quick: do you know your Noble Gases, or the atomic weight of Nobilium?), now it has to compete with fancypants super atoms!

This new superatom is made of one vanadium and eight cesium atoms, and it “acts like a tiny magnet that can mimic a single manganese atom in magnetic strength while preferentially allowing electrons of specific spin orientation to flow through the surrounding shell of cesium atoms”. What good is this new superatom? According to Shiv N. Khanna, Ph.D., professor in the VCU Department of Physics:

A combination such as the one we have created here can lead to significant developments in the area of “molecular electronics,” a field where researchers study electric currents through small molecules. These molecular devices are expected to help make non-volatile data storage, denser integrated devices, higher data processing and other benefits.

The researchers are also exploring non-conductive magnetic superatoms by combining gold and manganese.

Via Spintronics Info.