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Physicists isolate bound states in graphene-superconductor junctions

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TechAndComputer (Feb. 15, 2011) — Illinois researchers have documented the first observations of some unusual physics when two prominent electric materials are connected: superconductors and graphene.

Led by University of Illinois physics professor Nadya Mason, the group published its findings in the journal Nature Physics.

When a current is applied to a normal conductor, such as metal or graphene, it flows through the material as a stream of...

TechAndComputer (Feb. 15, 2011) — Illinois researchers have documented the first observations of some unusual physics when two prominent electric materials are connected: superconductors and graphene.

Led by University of Illinois physics professor Nadya Mason, the group published its...

Next-generation electronic devices: Conduction, surface states in topological insulator nanoribbons controlled

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TechAndComputer (Feb. 14, 2011) — In recent years, topological insulators have become one of the hottest topics in physics. These new materials act as both insulators and conductors, with their interior preventing the flow of electrical currents while their edges or surfaces allow the movement of a charge.

Perhaps most importantly, the surfaces of topological insulators enable the transport of spin-polarized electrons while preventing the...

TechAndComputer (Feb. 14, 2011) — In recent...

Ultrafast quantum computer closer: Ten billion bits of entanglement achieved in silicon

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TechAndComputer (Feb. 9, 2011) — Scientists from Oxford University have made a significant step towards an ultrafast quantum computer by successfully generating 10 billion bits of quantum entanglement in silicon for the first time -- entanglement is the key ingredient that promises to make quantum computers far more powerful than conventional computing devices.

The researchers used high magnetic fields and low temperatures to produce entanglement...

TechAndComputer (Feb. 9, 2011) —...

First high-temp spin-field-effect transistor created

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TechAndComputer (Dec. 24, 2010) — An international team of researchers featuring Texas A&M University physicist Jairo Sinova has announced a breakthrough that gives a new spin to semiconductor nanoelectronics and the world of information technology.

The team has developed an electrically controllable device whose functionality is based on an electron's spin. Their results, the culmination of a 20-year scientific quest involving many...

TechAndComputer (Dec. 24, 2010) — An...

Electric current moves magnetic vortices: With the help of neutrons, physicists discover new ways to save data

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TechAndComputer (Dec. 21, 2010) — One of the requirements to keep trends in computer technology on track -- to be ever faster, smaller, and more energy-efficient -- is faster writing and processing of data. In the Dec. 17 issue of the journal Science, physicists at the Technische Universitaet Muenchen (TUM) and the Universitaet zu Koeln report results that could point the way to a solution. TUM physicists set a lattice of magnetic vortices in a...

TechAndComputer (Dec. 21, 2010) — One of...