Navigation Links
Creating unconventional metals
Date:8/20/2008

The semiconductor silicon and the ferromagnet iron are the basis for much of mankind's technology, used in everything from computers to electric motors. In this week's issue of the journal Nature (August 21st) an international group of scientists, including academic and industrial researchers from the UK, USA and Lesotho, report that they have combined these elements with a small amount of another common metal, manganese, to create a new material which is neither a magnet nor an ordinary semiconductor. The paper goes on to show how a small magnetic field can be used to switch ordinary semiconducting behaviour (such as that seen in the electronic-grade silicon which is used to make transistors) back on.

The new material exists in a quantum halfway house between magnet and semiconductor - in the same way that much more complex materials such as ceramics which exhibit high temperature superconductivity exist in quantum halfway houses between metals and magnetic insulators. The research is of fundamental importance because it demonstrates, for the first time, a simple recipe for reaching this halfway house, whilst also suggesting new mechanisms for controlling electrical currents and magnetism in semiconductor devices.

Professor J.F. DiTusa of Louisiana State University and a co-author of the paper said: "It's amazing that something which was thought to exist theoretically in mathematical physics could actually be found in an alloy which was simply formed by melting together a few common elements."

Professor Gabriel Aeppli of UCL (University College London), another member of the research team and Director of the London Centre for Nanotechnology, added: "It might be possible to see similar effects in devices made using materials and methods found in laser pointers. This would put what we've seen firmly in the realm of that which can easily be achieved using current technologies."

The first author of the paper, Dr. N. Manyala of the National University of Lesotho, said: "We are looking forward to investigating whether we can see these effects using thin layers of the same materials deposited directly on the silicon wafers. These wafers are the same as those used by mass market electronics manufacturers as the basis for integrated circuits." Dr. Ramirez, who is now with LGS-Bell Labs Innovations echoed this thought, noting that, "with the end of Moore's law in sight, mechanisms for controlling and understanding possible new information bits such as spins in solids are actively being sought after."


'/>"/>

Contact: Dave Weston
d.weston@ucl.ac.uk
44-020-767-97678
University College London
Source:Eurekalert  

Related biology technology :

1. Pilot Therapeutics Announces New Executive Team with Extensive Experience Creating New Health and Nutrition Businesses
2. The sensitive side of carbon nanotubes: Creating powerful pressure sensors
3. Creating the Bionic Woman: Making Nerves Spring Back to Life
4. Purdue creating wireless sensors to monitor bearings in jet engines
5. For creating new field of science, Texas chemist wins international prize
6. Ohio Task Force Begins Mission of Creating a New 21st Century Industry
7. Appature Announces onKey as an Innovative Platform for Creating Microsoft HealthVault-Compatible Applications
8. TCN e-Systems Offers Trial Sponsors Solutions for Creating In-House Center of Excellence in Patient Recruitment
9. In novel playground, metals are formed into porous nanostructures
10. Metals shape up with a little help from friends
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Creating unconventional metals
(Date:5/2/2016)... , May 2, 2016 ... that its technology partner Mannin Research Inc. will be ... (ARVO), which takes place from May 1-5, 2016 in ... will be meeting with its vendors and research partners. ... business development goals and other collaborative opportunities for the ...
(Date:5/2/2016)... ... May 02, 2016 , ... StarNet Communications Corp, ( http://www.starnet.com/ ... addition of three Secure Remote Desktop modules to its flagship X-Win32 PC X server. ... and Unix servers to the user’s PC over encrypted SSH. , Traditionally, users of ...
(Date:4/29/2016)... , ... April 30, 2016 , ... The MIT bioLogic ... design, the bioLogic team explored how bacterial properties can be applied to fabric and ... Natto bacteria, which move in response to humidity change. The team harvested Natto cells ...
(Date:4/29/2016)... ... April 29, 2016 , ... ... used in spinal surgical procedures, today announced the completion of a significant transaction ... for current and future customers and partners. Kohlberg & Company, L.L.C. (“Kohlberg”), ...
Breaking Biology Technology:
(Date:3/22/2016)... , March 22, 2016 ... research report "Electronic Sensors Market for Consumer Industry by ... & Others), Application (Communication & IT, Entertainment, ... - Global Forecast to 2022", published by ... is expected to reach USD 26.76 Billion ...
(Date:3/17/2016)... , March 17, 2016 ABI ... intelligence, forecasts the global biometrics market will reach ... impressive 118% increase from 2015. Consumer electronics, particularly ... embedded fingerprint sensors anticipated to reach two billion ... Dimitrios Pavlakis , Research Analyst at ...
(Date:3/14/2016)... March 14, 2016 http://www.apimages.com ... --> - Renvoi : image disponible via ... --> --> DERMALOG, le ... de nouveaux lecteurs d,empreintes digitales pour l,enregistrement des ... sera utilisé pour produire des cartes d,identité aux ...
Breaking Biology News(10 mins):