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Super-Small Transistor Created: Artificial Atom Powered by Single Electrons
Science Daily ^ | 04-18-2011 | University of Pittsburgh

Posted on 04/18/2011 12:57:55 PM PDT by Red Badger

A University of Pittsburgh-led team has created a single-electron transistor that provides a building block for new, more powerful computer memories, advanced electronic materials, and the basic components of quantum computers.

The researchers report in Nature Nanotechnology that the transistor's central component -- an island only 1.5 nanometers in diameter -- operates with the addition of only one or two electrons. That capability would make the transistor important to a range of computational applications, from ultradense memories to quantum processors, powerful devices that promise to solve problems so complex that all of the world's computers working together for billions of years could not crack them.

In addition, the tiny central island could be used as an artificial atom for developing new classes of artificial electronic materials, such as exotic superconductors with properties not found in natural materials, explained lead researcher Jeremy Levy, a professor of physics and astronomy in Pitt's School of Arts and Sciences. Levy worked with lead author and Pitt physics and astronomy graduate student Guanglei Cheng, as well as with Pitt physics and astronomy researchers Feng Bi, Daniela Bogorin,and Cheng Cen. The Pitt researchers worked with a team from the University of Wisconsin at Madison led by materials science and engineering professor Chang-Beom Eom, including research associates Chung Wun Bark, Jae-Wan Park, and Chad Folkman. Also part of the team were Gilberto Medeiros-Ribeiro, of HP Labs, and Pablo F. Siles, a doctoral student at the State University of Campinas in Brazil.

Levy and his colleagues named their device SketchSET, or sketch-based single-electron transistor, after a technique developed in Levy's lab in 2008 that works like a microscopic Etch A SketchTM, the drawing toy that inspired the idea.

(Excerpt) Read more at sciencedaily.com ...


TOPICS: Business/Economy; Culture/Society; Technical
KEYWORDS: computer; electronics; memory; quantum

An atomic-scale depiction of the SketchSET shows three wires (green bars) converging on the central island (center green area), which can house up to two electrons. Electrons tunnel from one wire to another through the island. Conditions on the third wire can result in distinct conductive properties. (Credit: Image courtesy of University of Pittsburgh

1 posted on 04/18/2011 12:57:59 PM PDT by Red Badger
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To: ShadowAce

Ping!............


2 posted on 04/18/2011 12:59:14 PM PDT by Red Badger (Mitt Romney: The Harold Stassen of the 21st century........)
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To: Red Badger
No doubt the government will use this for nefarious reasons of course...
3 posted on 04/18/2011 1:21:21 PM PDT by American Constitutionalist (The fool has said in his heart, " there is no GOD " ..)
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To: Red Badger

Whoa, you could back up your entire soul with a thing like that.


4 posted on 04/18/2011 2:00:58 PM PDT by 668 - Neighbor of the Beast (Public education is WELFARE.)
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To: Red Badger

Looks like I am gonna need a smaller soldering iron ...


5 posted on 04/18/2011 2:13:36 PM PDT by spodefly (This is my tag line. There are many like it, but this one is mine.)
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To: rdb3; Calvinist_Dark_Lord; GodGunsandGuts; CyberCowboy777; Salo; Bobsat; JosephW; ...

6 posted on 04/18/2011 2:31:07 PM PDT by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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To: Red Badger

Yes, but do you know how hard it id to get replacement parts for a single electron?


7 posted on 04/18/2011 2:38:11 PM PDT by nickcarraway
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To: Red Badger

There goes your RSA/AES encryption.

No more secrets.


8 posted on 04/18/2011 2:59:38 PM PDT by AFreeBird
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To: Red Badger; SunkenCiv

Holy cow, this seems big!


9 posted on 04/18/2011 5:18:57 PM PDT by LibWhacker
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To: LibWhacker
Holy cow, this seems big!

It always does when they only report one side of the story.

10 posted on 04/18/2011 11:30:16 PM PDT by Moonman62 (Half of all Americans are above average. Politicians come from the other half.)
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To: Red Badger
µ
µ
µ
11 posted on 04/19/2011 7:42:25 AM PDT by ▀udda▀udd (7 days - 7 ways a Guero y Guay Lao >>> with a floating, shifting, ever changing persona.....)
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