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Latest High-temperature superconductivity Stories

2009-03-26 10:05:45

Though a year has passed since the discovery of a new family of high-temperature superconductors, a viable explanation for the iron-based materials' unusual properties remains elusive. But a team of scientists working at the National Institute of Standards and Technology (NIST) may be close to the answer.The team has found strong evidence that magnetism is a pivotal factor governing the physical properties of iron pnictides, a group of materials that conduct electricity without resistance at...

2009-03-20 10:53:24

Scientists at the University of Liverpool and Durham University have developed a new material to further understanding of how superconductors could be used to transmit electricity to built-up areas and reduce global energy losses. The team has produced a material from a football-shaped molecule, called carbon60, to demonstrate how a superconductor "“ an element, compound or alloy that does not oppose the steady passage of an electric current "“ could work at temperatures suitable...

2009-03-17 11:26:48

Scientists at the Naval Research Laboratory (NRL) have proposed theoretical models to explain the normal magnetic properties in iron-based superconductors. This research was published in the December 21, 2008 issue of Nature Physics. Their research builds on earlier research they conducted proposing a theoretical model for superconductivity in newly discovered iron-based superconductors. That earlier research was published in Physical Review Letters.To set the stage for the NRL researchers'...

2009-03-13 10:03:50

Theory makes predictions about latest high-temp superconductorAn international team of physicists from the United States and China this week offered a new theory to both explain and predict the complex quantum behavior of a new class of high-temperature superconductors.The findings, which are available online this week from the Proceedings of the National Academy of Sciences, are about materials known as iron pnictides (pronounced NIK-tides). The discovery of high-temperature...

2009-02-23 08:58:26

Scientists from Queen Mary, University of London and the University of Fribourg (Switzerland) have found evidence that magnetism is involved in the mechanism behind high temperature superconductivity. Writing in the journal Nature Materials, Dr Alan Drew from Queen Mary's Department of Physics and his colleagues at the University of Fribourg report on the investigation of a new high temperature superconductor, the so-called oxypnictides. They found that these exhibit some striking...

2009-02-17 10:36:53

The paper published in the Journal of the American Chemical Society (JACS) by a team led by professor Francesc Illas of the UB's Department of Physical Chemistry and director of the Laboratory of Computational Materials Science (CMSL) will help to broaden our understanding of the nature of superconducting materials and of the origin of the superconductivity phenomenon in high critical temperature materials. Other participants in the study are Ib©rio de P. R. Moreira (UB) and Jacek C....

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2009-02-15 08:44:53

Discovery paves way for a new type of quantum computing An international team of scientists led by a Princeton University group recently discovered that on the surface of certain materials collective arrangements of electrons move in ways that mimic the presence of a magnetic field where none is present. The finding represents one of the most exotic macroscopic quantum phenomena in condensed-matter physics: a topological Quantum Spin Hall effect. The research could lead to advances in...

2009-01-13 11:36:06

Scientists at U.S. Department of Energy's Argonne National Laboratory used inelastic neutron scattering to show that superconductivity in a new family of iron arsenide superconductors cannot be explained by conventional theories.Funding for this research was provided by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences.  The mission of the Basic Energy Sciences (BES) program - a multipurpose, scientific research effort - is to foster and support...

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2008-12-02 16:15:08

"ËœStriped' material offers more clues to high-temperature superconductivity Scientists studying a material that appeared to lose its ability to carry current with no resistance say new measurements reveal that the material is indeed a superconductor "” but only in two dimensions. Equally surprising, this new form of 2-D superconductivity emerges at a higher temperature than ordinary 3-D superconductivity in other compositions of the same material. The research, conducted in...

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2008-11-24 09:30:43

Laboratory researchers have posited an explanation for superconductivity that may open the door to the discovery of new, unconventional forms of superconductivity. In a November 20 Nature letter, research led by Tuson Park and Joe D. Thompson both of Condensed Matter and Thermal Physics (MPA-10) describes a new explanation for superconductivity in non-traditional materials"”one that describes a potentially new state of matter in which the superconducting material behaves simultaneously...


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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