Latest Superconductivity Stories

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...

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...

2010-02-13 09:13:52

Theoretical spectroscopy and computational model reveal hidden ordered state Electrons in complex matter sometimes arrange themselves into strange patterns, which remain shrouded in mystery. Finding the organizing principles and classifying their phases is an important challenge in understanding condensed matter. One such material is URu2Si2. "URu2Si2 is a man-made compound based on uranium, which undergoes an unknown phase transition," said Kristjan Haule of the Center for Materials Theory...

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...

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...

2010-01-11 07:49:24

Quantum entanglement achieved in solid-state circuitry For the first time, physicists have convincingly demonstrated that physically separated particles in solid-state devices can be quantum-mechanically entangled. The achievement is analogous to the quantum entanglement of light, except that it involves particles in circuitry instead of photons in optical systems. Both optical and solid-state entanglement offer potential routes to quantum computing and secure communications, but solid-state...

2010-01-08 16:16:08

First direct evidence of quantum critical point in iron-based 'pnictides' New experiments on a recently discovered class of iron-based superconductors suggest that the ability of their electrons to conduct electricity without resistance is directly connected with the magnetic properties of those electrons. Results of the experiments appear in the Jan. 8 issue of Physical Review Letters. The tests, which were carried out by a team of U.S. and Chinese physicists, shed light on the fundamental...

2009-12-15 07:07:00

CHARLOTTE, N.C., Dec. 15 /PRNewswire-FirstCall/ -- SPX Corporation (NYSE: SPW) today announced that its Waukesha Electric Systems, Inc. business unit was awarded a $10.7 million grant by the U.S. Department of Energy (DOE) to develop and manufacture a smaller, more efficient superconducting transformer for electric utilities which will help enhance the flexibility and reliability of the nation's power grid. SPX's Waukesha Electric Systems and several grant participant companies intend to...

2009-11-09 12:18:17

Vitaly Ginzburg, one of the creators of the Soviet hydrogen bomb and later a Nobel Prize-winning Russian physicist, died in Moscow on Sunday at the age of 93, The Associated Press reported. The Russian Academy of Sciences said on Monday that Ginzburg died late Sunday of cardiac arrest. Ginsburg and two other scientists won the 2003 Nobel Prize in physics for their contribution to theories on superconductivity. He was born in Moscow on October 4, 1916 to a doctor mother who died of typhoid in...

Latest Superconductivity Reference Libraries

2010-09-23 20:39:09

An electromagnet, a magnet whose magnetic field is produced by the flow of electric current, works until the electric current ceases. The magnetic field in a simple electromagnet is created by a wire passing through it with an electric current. The strength of the magnet depends on the amount of current. By making the wire into a coil the magnetic field is concentrated. A straight tube coil is a solenoid. A stronger magnetic field can be produced by putting a ferromagnetic material, such as...

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