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Latest Spintronics Stories

2011-08-12 12:28:19

Two Lehigh physicists have developed an imaging technique that makes it possible to directly observe light-emitting excitons as they diffuse in a new material that is being explored for its extraordinary electronic properties. Called rubrene, it is one of a new generation of single-crystal organic semiconductors. Excitons, which are created by light, play a central role in the harvesting of solar energy using plastic solar cells. The achievement by Ivan Biaggio, professor of physics, and...

2011-08-10 20:43:00

Kiel researchers discover novel state of crystal matter Nature knows two opposite types of solids: one that emerges upon compression from a liquid and a second that appears if the pressure on a liquid is reduced. While the former is typical for substances in our everyday life the latter occurs for example in a dense quantum liquid of electrons (such as in metals) or ions (in exotic white dwarf or neutron stars). Now it has been shown that there exists yet a third form of matter that inherits...

2011-08-01 15:40:53

Researchers find magnetic skyrmions in atomically thin metal film Physicists at Hamburg and Kiel University and the Forschungszentrum Jlich have found for the first time a regular lattice of magnetic skyrmions "“ cycloidal vortex spin structures of exceptional stability "“ on a surface. This fascinating magnetic structure was discovered experimentally at the University of Hamburg by spin-polarized scanning tunnelling microscopy and imaged on the atomic scale. Theoreticians at the...

2011-08-01 14:32:23

A new source of very cold electrons will improve the quality and speed of nanoimaging for drug and materials development, to a trillionth of a second. The study published in Nature Physics today was carried out by researchers from the ARC Centre of Excellence for Coherent X-ray Science (CXS), headquartered at the University of Melbourne. Associate Professor Robert Scholten from the University's School of Physics  and the CXS, said the new cold electron source offered potential advances...

2011-08-01 12:09:01

Physicists from Juelich, Kiel and Hamburg identify an atomic-scale magnetic lattice of cycloidal vortices in a thin metal film Physicists at Forschungszentrum Jlich and the universities of Kiel and Hamburg are the first to discover a regular lattice of stable magnetic skyrmions "“ radial spiral structures made up of atomic-scale spins "“ on a surface instead of in bulk materials. Such tiny formations could one day form the basis of a new generation of smaller and more efficient...

2011-07-30 02:02:48

New theory of 'Extremely Correlated Fermi Liquids' may explain anomalous photoemission spectra of high-temperature superconductors Although high-temperature superconductors are widely used in technologies such as MRI machines, explaining the unusual properties of these materials remains an unsolved problem for theoretical physicists. Major progress in this important field has now been reported by physicists at the University of California, Santa Cruz, in a pair of papers published...

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2011-07-26 08:11:58

New multiferroic mechanism could lead to next-generation memory and sensing devices Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have observed a new way that magnetic and electric properties "” which have a long history of ignoring and counteracting each other "” can coexist in a special class of metals. These materials, known as multiferroics, could serve as the basis for the next generation of faster and energy-efficient logic, memory, and...

2011-07-20 14:47:54

A violation of one of the oldest empirical laws of physics has been observed by scientists at the University of Bristol. Their experiments on purple bronze, a metal with unique one-dimensional electronic properties, indicate that it breaks the Wiedemann-Franz Law. This historic discovery is described in a paper published today in Nature Communications.In 1853, two German physicists, Gustav Wiedemann and Rudolf Franz, studied the thermal conductivity (a measure of a system's ability to...

2011-07-15 14:35:44

Berkeley Lab's Advanced Light Source uncovers colossal conductivity changes in a special material If there were a Hall of Fame for materials, manganites would be among its members. Some manganites, compounds of manganese oxides, are renowned for colossal magnetoresistance "“ the ability to suddenly boost resistance to electrical conductivity by orders of magnitude when a magnetic field is applied "“ and manganites are also promising candidates for spintronics applications "“...

2011-07-04 12:45:56

Research reveals vital insight into spintronics Scientists have taken one step closer to the next generation of computers. Research from the Cavendish Laboratory, the University of Cambridge's Department of Physics, provides new insight into spintronics, which has been hailed as the successor to the transistor. Spintronics, which exploits the electron's tiny magnetic moment, or 'spin', could radically change computing due to its potential of high-speed, high-density and low-power consumption....