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Latest Spintronics Stories

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....

2011-06-30 13:44:30

At the smallest scales, magnetism may not work quite the way scientists expected, according to a recent paper in Physical Review Letters by Rafal Oszwaldowski and Igor Zutic of the University at Buffalo and Andre Petukhov of the South Dakota School of Mines and Technology. The three physicists have proposed that it would be possible to create a quantum dot -- a kind of nanoparticle -- that is magnetic under surprising circumstances. Magnetism is determined by a property all electrons possess:...

2011-06-27 23:25:45

Physicists working at the University of California, Santa Barbara and the University of Konstanz in Germany have developed a breakthrough in the use of diamond in quantum physics, marking an important step toward quantum computing. The results are reported in this week's online edition of Nature Physics. The physicists were able to coax the fragile quantum information contained within a single electron in diamond to move into an adjacent single nitrogen nucleus, and then back again using...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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