Navigation Links
Etch-a-sketch with superconductors
Date:8/22/2011

Reporting in Nature Materials this week, researchers from the London Centre for Nanotechnology and the Physics Department of Sapienza University of Rome have discovered a technique to 'draw' superconducting shapes using an X-ray beam. This ability to create and control tiny superconducting structures has implications for a completely new generation of electronic devices.

Superconductivity is a special state where a material conducts electricity with no resistance, meaning absolutely zero energy is wasted.

The research group has shown that they can manipulate regions of high temperature superconductivity, in a particular material which combines oxygen, copper and a heavier, 'rare earth' element called lanthanum. Illuminating with X-rays causes a small scale re-arrangement of the oxygen atoms in the material, resulting in high temperature superconductivity, of the type originally discovered for such materials 25 years ago by IBM scientists. The X-ray beam is then used like a pen to draw shapes in two dimensions.

A well as being able to write superconductors with dimensions much smaller than the width of a human hair, the group is able to erase those structures by applying heat treatments. They now have the tools to write and erase with high precision, using just a few simple steps and without the chemicals ordinarily used in device fabrication. This ability to re-arrange the underlying structure of a material has wider applications to similar compounds containing metal atoms and oxygen, ranging from fuel cells to catalysts.

Prof. Aeppli, Director of the London Centre for Nanotechnology and the UCL investigator on the project, said: "Our validation of a one-step, chemical-free technique to generate superconductors opens up exciting new possibilities for electronic devices, particularly in re-writing superconducting logic circuits. Of profound importance is the key to solving the notorious 'travelling salesman problem', which underlies many of the world's great computational challenges. We want to create computers on demand to solve this problem, with applications from genetics to logistics. A discovery like this means a paradigm shift in computing technology is one step closer."

Prof Bianconi, the leader of the team from Sapienza, added: "It is amazing that in a few simple steps, we can now add superconducting 'intelligence' directly to a material consisting mainly of the common elements copper and oxygen."


'/>"/>

Contact: Dave Weston
d.weston@ucl.ac.uk
44-020-310-83844
University College London
Source:Eurekalert  

Related biology technology :

1. Pitt-led team develops nanoscale light sensor compatible with Etch-a-Sketch nanoelectronic platform
2. Superconductors on the nanoscale
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Etch-a-sketch with superconductors
(Date:3/27/2017)... 2017 Roka Bioscience, Inc. (NASDAQ: ROKA), a molecular ... detection of foodborne pathogens,  today announced that Mary Duseau ... 2017 Convention on March 29 at 9:50am ET. The conference ... About Roka Bioscience ... Roka Bioscience is a molecular ...
(Date:3/27/2017)... , March 27, 2017 Cousins Properties (NYSE: ... the world,s leading biotechnology companies, has signed a 10-year, approximately ... Class A office asset located in the Westshore submarket of ... are thrilled that Amgen has chosen Corporate Center for their ... Larry Gellerstedt , president and chief executive officer of Cousins ...
(Date:3/27/2017)... March 27, 2017 Infectex Ltd., a Russian portfolio company of ... study of SQ109 added to the standard drug therapy regimen in patients with multidrug-resistant ... Sequella, Inc. ( USA ) and the US National Institutes of Health. ... ... Biotech Venture Fund Logo ...
(Date:3/27/2017)...  Perthera,s Chief Bioinformatics Officer and research faculty member ... Ph.D., will be speaking at the American Medical Informatics ... 27, 2017, she will be speaking on the topic ... and Care" (from 10:30 a.m. – 12:00 p.m. PST) ... a participant in the "Making Precision Oncology Data More ...
Breaking Biology Technology:
(Date:3/27/2017)... N.Y. , March 27, 2017  Catholic ... Information and Management Systems Society (HIMSS) Analytics for ... EMR Adoption Model sm . In addition, CHS ... of U.S. hospitals using an electronic medical record ... for its high level of EMR usage in ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by ... Global Forecast to 2022", published by MarketsandMarkets, the market is expected to be ... 2017 and 2022. Continue Reading ... ... ...
(Date:3/22/2017)... 2017 Optimove , provider of ... such as 1-800-Flowers and AdoreMe, today announced two ... Replenishment. Using Optimove,s machine learning algorithms, these features ... replenishment recommendations to their customers based not just ... customer intent drawn from a complex web of ...
Breaking Biology News(10 mins):