Tag Archives: superconductor

A Superconductor-Surrogate Earns Its Stripes

Berkeley Lab Study Reveals Origins of an Exotic Phase of Matter

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 scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have teased out another important tangle from this giant ball of string, bringing us a significant step closer to understanding how high- temperature superconductors work their magic. Working with a model compound, the team illuminated the origins of the so-called “stripe phase” in which electrons become concentrated in stripes throughout a material, and which appears to be linked to superconductivity. (more…)

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Researchers Use New Approach to Overcome Key Hurdle for Next-Generation Superconductors

Researchers from North Carolina State University have developed a new computational approach to improve the utility of superconductive materials for specific design applications – and have used the approach to solve a key research obstacle for the next-generation superconductor material yttrium barium copper oxide (YBCO).

A superconductor is a material that can carry electricity without any loss – none of the energy is dissipated as heat, for example. Superconductive materials are currently used in medical MRI technology, and are expected to play a prominent role in emerging power technologies, such as energy storage or high-efficiency wind turbines. (more…)

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IBM Honors the 25th Anniversary of High-Temperature Superconductivity

*IBM scientists, J. Georg Bednorz and K. Alex Muller, discovered the first successful high-temperature superconductor using a breakthrough ceramic material*

ZURICH – 18 Apr 2011: Twenty-five years ago IBM scientists, J. Georg Bednorz and K. Alex Muller altered the landscape of physics when they observed superconductivity in an oxide material at a temperature 50 percent higher(1), (-238 deg C, -397 deg F) than what was previously known. This discovery opened an entirely new chapter in the field of physics and earned them the Nobel Prize for Physics in 1987.

Their now seminal paper titled, “Possible High Tc Superconductivity in the Ba – La – Cu – O System”(2) was received by the peer-reviewed journal Zeitschrift fur Physik B on 17 April 1986. (more…)

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