Superconductors

New technique reveals hidden properties of ultracold atomic gases

harminka — Wed, 06 Aug 2008 13:52:18 -0500

Physicists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder, have demonstrated a powerful new technique that reveals hidden properties of ultracold atomic gases.

Researchers explain odd oxygen bonding under pressure

harminka — Tue, 05 Aug 2008 11:49:38 -0500

Oxygen, the third most abundant element in the cosmos and essential to life on Earth, changes its forms dramatically under pressure transforming to a solid with spectacular colors. Eventually it becomes metallic and a superconductor.

Superfluid-superconductor relationship is detailed

harminka — Sat, 02 Aug 2008 05:55:11 -0500

Scientists have studied superconductors and superfluids for decades. Now, researchers at Washington University in St. Louis have drawn the first detailed picture of the way a superfluid influences the behavior of a superconductor. In addition to describing previously unknown superconductor behavior, these calculations could change scientists' understanding of the motion of neutron stars.

New Insight on Superconductors

harminka — Thu, 31 Jul 2008 13:15:16 -0500

An important advance in understanding how the electrons in some materials become superconducting has been made by researchers from UC Davis, the Los Alamos National Laboratory and UC Irvine.

Scientists sneak peek under the veil of superconductivity

harminka — Sat, 12 Jul 2008 03:06:44 -0500

How does a magnet that cannot transport electricity transform into a superconductor that is a perfect conductor of electricity?

Developing technique to study and develop superconductors

harminka — Tue, 24 Jun 2008 06:21:09 -0500

A team of University of British Columbia researchers has developed a technique that controls the number of electrons on the surface of high-temperature superconductors, a procedure considered impossible for the past two decades.

A supra new kind of froth

harminka — Fri, 06 Jun 2008 11:15:39 -0500

To see the latest science of type-I superconductors, look no further than the froth on a morning cup of cappuccino. A team of U.S. Department of Energy's Ames Laboratory physicists and collaborating students have found that the bubble-like arrangement of magnetic domains in superconducting lead exhibits patterns that are very similar to everyday froths like soap foam or frothed milk on a fancy coffee.

New superconductors present new mysteries, possibilities

harminka — Thu, 05 Jun 2008 01:12:21 -0500

Johns Hopkins University researchers and colleagues in China have unlocked some of the secrets of newly discovered iron-based high-temperature superconductors, research that could result in the design of better superconductors for use in industry, medicine, transportation and energy generation.

Powerful superconductor is in a class all its own

harminka — Thu, 29 May 2008 08:23:44 -0500

Superconductivity has perplexed, astounded and inspired scientists ever since it was discovered in 1911. Now, in the latest of a century of surprises, researchers at the National High Magnetic Field Laboratory at Florida State University have discovered unusual properties in a novel superconducting material that point to an entirely new kind of superconductor.

New iron-based and copper-oxide high-temperature

harminka — Wed, 28 May 2008 13:43:47 -0500

In the initial studies of a new class of high-temperature superconductors discovered earlier this year, research at the Commerce Department’s National Institute of Standards and Technology (NIST) has revealed that new iron-based superconductors share similar unusual magnetic properties with previously known superconducting copper-oxide materials.

Researchers uncover information on new superconductors

harminka — Wed, 28 May 2008 13:29:25 -0500

The world of physics is on fire about a new kind of superconductor, and a group of researchers at the University of Tennessee, Knoxville, and Oak Ridge National Laboratory led by physicist Pengcheng Dai are in the middle of the heat.

Superconductors get a boost from pressure

harminka — Tue, 20 May 2008 07:56:53 -0500

Superconductors can convey more than 150 times more electricity than copper wires because they don’t restrict electron movement, the essence of electricity. But to do this, the materials have to be cooled below a very low, so-called, transition temperature, which often makes them impractical for widespread use.