Quantcast
Last updated on April 19, 2014 at 21:20 EDT

Latest High-temperature superconductivity Stories

2014-04-18 16:16:58

Research from North Carolina State University finds that impurities can hurt performance – or possibly provide benefits – in a key superconductive material that is expected to find use in a host of applications, including future particle colliders. The size of the impurities determines whether they help or hinder the material’s performance. At issue is a superconductive material called bismuth strontium calcium copper oxide (Bi2212). A superconductor is a material that can carry...

Scientists Find New Path To Loss-Free Electricity
2014-02-14 12:49:57

Brookhaven National Laboratory Brookhaven Lab researchers captured the distribution of multiple orbital electrons to help explain the emergence of superconductivity in iron-based materials Armed with just the right atomic arrangements, superconductors allow electricity to flow without loss and radically enhance energy generation, delivery, and storage. Scientists tweak these superconductor recipes by swapping out elements or manipulating the valence electrons in an atom's outermost...

Study Advances Quest For Better Superconducting Materials
2014-01-28 11:55:11

Oak Ridge National Laboratory Nearly 30 years after the discovery of high-temperature superconductivity, many questions remain, but an Oak Ridge National Laboratory team is providing insight that could lead to better superconductors. Their work, published in Physical Review Letters, examines the role of chemical dopants, which are essential to creating high-temperature superconductors – materials that conduct electricity without resistance. The role of dopants in superconductors is...

Universal Ripple May Hold Secret To High-temperature Superconductivity
2013-12-20 15:08:38

University of British Columbia UBC researchers have discovered a universal electronic state that controls the behavior of high-temperature superconducting copper-oxide ceramics. The work, published this week in the journal Science, reveals the universal existence of so-called 'charge-density-waves' -- static ripples formed by the self-organization of electrons in the material's normal state. These ripples carry the seeds out of which superconductivity emerges. "Our understanding of...

X-rays Reveal Another Feature Of High-temperature Superconductivity
2013-11-25 08:20:57

European Synchrotron Radiation Facility Discovery of a giant resonance puts these materials further apart Classical and high-temperature superconductors differ hugely in the value of the critical temperatures at which they lose all electrical resistance. Scientists have now used powerful X-rays to establish another big difference: high-temperature superconductivity cannot be accounted for by the mechanism that leads to conventional superconductivity. As this mechanism called...

Study Reveals Origins Of An Exotic Phase Of Matter
2013-11-19 06:34:34

Lawrence Berkeley National Laboratory Understanding superconductivity – whereby certain materials can conduct electricity without any loss of energy – has proved to be one of the most persistent problems in modern physics. Scientists have struggled for decades to develop a cohesive theory of superconductivity, largely spurred by the game-changing prospect of creating a superconductor that works at room temperature, but it has proved to be a tremendous tangle of complex physics. Now...

Grand Unified Theory Of Exotic Superconductivity?
2013-10-17 12:05:52

Brookhaven National Laboratory Scientists introduce a general theoretical approach that describes all known forms of high-temperature superconductivity and their "intertwined" phases Years of experiments on various types of high-temperature (high-Tc) superconductors—materials that offer hope for energy-saving applications such as zero-loss electrical power lines—have turned up an amazing array of complex behaviors among the electrons that in some instances pair up to carry current...

2013-09-21 23:01:02

Transparency Market Research adds new "Global Superconductors Market - industry Analysis, Share, Size, Growth, and Forecast, 2012 - 2018" market research report to its report store. Browse report at http://www.transparencymarketresearch.com/superconductors-market.html. Albany, New York (PRWEB) September 21, 2013 A superconductor is a material that transfers electrons at critical temperature (Tc) from one atom to another without generating any resistance (heat, sound, or any...

2013-06-07 13:03:28

2 orders for electrons A German-French research team has constructed a new model that explains how the so-called pseudogap state forms in high-temperature superconductors. The calculations predict two coexisting electron orders. Below a certain temperature, superconductors lose their electrical resistance and can conduct electricity without loss. "It is not to be excluded that the new pseudogap theory also provides the long-awaited explanation for why, in contrast to conventional metallic...

Resistivity Switch Plays Role Of Magnetism In Iron-based Superconductors
2013-06-06 13:31:12

Ames Laboratory Physicists at the U.S. Department of Energy´s Ames Laboratory have discovered surprising changes in electrical resistivity in iron-based superconductors. The findings, reported in Nature Communications, offer further evidence that magnetism and superconductivity are closely related in this class of novel superconductors. “We found that the directions of smallest and largest resistivity within the conducting layers are significantly dependent on the composition...