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Latest High-temperature superconductivity Stories

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2010-06-03 07:46:09

Findings reveal characteristics of "hidden order" in unusual uranium compound and demonstrate new method for investigating long-standing physics problems Using a microscope designed to image the arrangement and interactions of electrons in crystals, scientists have captured the first images of electrons that appear to take on extraordinary mass under certain extreme conditions. The technique reveals the origin of an unusual electronic phase transition in one particular material, and opens the...

2010-05-28 13:57:06

New materials yield clues about high-temperature superconductors A team of U.S. and Chinese physicists are zeroing in on critical effects at the heart of the latest high-temperature superconductors -- but they're using other materials to do it. In new research appearing online today in the journal Physical Review Letters, the Rice University-led team offers new evidence about the quantum features of the latest class of high-temperature superconductors, a family of iron-based compounds called...

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2010-05-17 09:48:09

New images of iron-based superconductors are providing telltale clues to the origin of superconductivity in a class of ceramic materials known as pnictides. The images reveal that electrons responsible for the superconducting currents in some pnictides tend to flow primarily along the boundaries between the crystal grains that make up the superconductors. The research, which is reported in a pair of papers appearing in the current issue of the journal Physical Review B, may help physicists to...

2010-05-06 15:36:02

Researchers at Universitat Autònoma de Barcelona, ICMAB-CSIC, and the firms Labein Tecnalia and Nexans, coordinated by the electrical company Endesa, have constructed a 30m cable and the terminals needed to connect it to the network using the high-temperature superconducting material BSCCO. This is the most advanced cable in terms of distribution (24 kV), since its current value is higher than that obtained up to date, 3200 Amperes RMS, and therefore can transport the...

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2010-03-31 08:04:48

Award-winning materials expert and UH grad returns with SuperPower, Inc Although the U.S. electric power industry is one of the greatest engineering marvels of the 20th century, aging technology and an increase in demand create problems for the electricity infrastructure that need to be fixed. Venkat Selvamanickam, director of the Applied Research Hub and the M.D. Anderson chair professor of the department of mechanical engineering, University of Houston, is developing a technology with high...

2010-03-15 09:35:51

Controlling structure on the nanoscale could lead to better superconductors Superconductors, materials in which current flows without resistance, have tantalizing applications. But even the highest-temperature superconductors require extreme cooling before the effect kicks in, so researchers want to know when and how superconductivity comes about in order to coax it into existence at room temperature. Now a team has shown that, in a copper-based superconductor, tiny areas of weak...

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2010-02-24 09:02:13

Brown University physicist Vesna Mitrovic and colleagues at Brown and in France have discovered magnetic waves that fluctuate when exposed to certain conditions in a superconducting material. The discovery may help scientists understand more fully the relationship between magnetism and superconductivity at the quantum level. Results are published in Physical Review Letters. At the quantum level, the forces of magnetism and superconductivity exist in an uneasy relationship. Superconducting...

2010-02-03 15:42:00

Research Superiority Award to Enable Recruitment of Stellar Faculty, Formally Establish Applied Research Hub at Texas Center for Superconductivity (TcSUH-ARH) HOUSTON, Feb. 3 /PRNewswire-USNewswire/ -- The University of Houston has received a Research Superiority Award from the Texas Emerging Technology Fund (ETF), announced today by Gov. Rick Perry on behalf of the ETF board. The University of Houston's Texas Center for Superconductivity (TcSUH) will receive $3.5 million over a five-year...

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2010-02-02 10:23:43

Neutron scattering experiments performed at the Department of Energy's Oak Ridge National Laboratory give strong evidence that, if superconductivity is related to a material's magnetic properties, the same mechanisms are behind both copper-based high-temperature superconductors and the newly discovered iron-based superconductors. The work, published in a recent Nature Physics, was performed at ORNL's Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR) along with the ISIS...

2010-01-25 17:09:37

Physicists have long wondered whether hydrogen, the most abundant element in the universe, could be transformed into a metal and possibly even a superconductor"”the elusive state in which electrons can flow without resistance. They have speculated that under certain pressure and temperature conditions hydrogen could be squeezed into a metal and possibly even a superconductor, but proving it experimentally has been difficult. High-pressure researchers, including Carnegie's Ho-kwang...


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