Latest Superconductivity Stories

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...

2009-10-29 20:33:55

Findings may lead to precision engineering of superconducting thin films for electronic devices Using precision techniques for making superconducting thin films layer-by-layer, physicists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have identified a single layer responsible for one such material's ability to become superconducting, i.e., carry electrical current with no energy loss. The technique, described in the October 30, 2009, issue of Science, could be used...

2009-09-17 13:31:07

In finally answering an elusive scientific question, researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have shown that the selective placement of strain can alter the electronic phase and its spatial arrangement in correlated electron materials. This unique class of materials is commanding much attention now because they can display properties such as colossal magnetoresistance and high-temperature superconductivity, which are highly coveted...

2009-09-17 10:30:29

The U.S. Department of Energy's (DOE's) Thomas Jefferson National Accelerator Facility marked a step forward in the field of advanced particle accelerator technology with the successful test of the first U.S.-built superconducting radiofrequency (SRF) niobium cavity to meet the exacting specifications of the proposed International Linear Collider (ILC).  The cavity was developed as part of a DOE-funded R&D effort focused on developing technologies that would be required for an ILC,...

2009-09-12 07:45:00

Scientists at NASA's Jet Propulsion Laboratory have now successfully used magnetic fields to levitate mice. Researchers hope that the study of the mice, which are biologically closer to humans than previously floated live frogs and grasshoppers, will ultimately lead to advances in counteracting bone loss in astronauts caused by reduced gravity over long periods of time. In an interview on Thursday, Jet Propulsion Laboratory physicist Yuanming Liu said that the mice were levitated by a no...

2009-08-20 12:54:53

Canadian scientists are challenging physics' single-band Hubbard theory that's used to predict and calculate behavior of high-temperature superconductors. University of British Columbia researchers said their findings mark the first compelling evidence challenging the Hubbard model under certain conditions, and could necessitate entirely new theoretical approaches to explaining superconductivity in certain materials. Single-band Hubbard physics has been used for 20 years to predict how...

2009-08-19 16:04:12

New UBC research has literally and figuratively poked holes in single-band Hubbard physics--a model that has been used to predict and calculate the behavior of high-temperature superconductors for 20 years.The findings are the first compelling evidence challenging the model under certain conditions, and could necessitate entirely new theoretical approaches to explaining superconductivity in cuprate materials, one of the outstanding mysteries in condensed-matter physics."Single-band Hubbard...

2009-08-03 10:40:00

Hydrogen, the most common element in the universe, is normally an insulating gas, but at high pressures it may turn into a superconductor. Now, scientists at the Carnegie Institution in Washington D.C., US, have discovered a hydrogen-based compound that could be helpful in the search for metallic and superconducting forms of hydrogen. The results are reported in Physical Review Letters and highlighted in the August 3rd issue of APS's on-line journal Physics (physics.aps.org).Hydrogen is the...

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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Word of the Day
  • An evil spirit; a devil.
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'Cacodemon' comes from a Greek term meaning 'evil genius.'