Showing posts with label Superconductivity. Show all posts
Showing posts with label Superconductivity. Show all posts

Sunday, June 14, 2009

Navy/Raytheon's 100kW weaponized laser

The 100 kilowatt experimental Free Electron Laser (FEL) uses superconducting electron accelerators to produce high-power laser beams that could target cruise missiles, airplanes or boats.

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Saturday, March 28, 2009

Water-induced superconductivity

Exposure of undoped SrFe2As2 epitaxial thin films to water vapor induces a superconducting transition.

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Sunday, March 22, 2009

Pnictides and Superconductivity

Pnictides have very similar layered structures as the copper-oxygen compounds (known as cuprates), containing alternating layers of FeAs (iron arsenide) compared to alternating layers of CuO (copper oxide) for the cuprates. Both the pnictides and cuprates only become superconducting when significantly "doped" away from an antiferromagnetic parent compound via the addition of impurity atoms.

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Friday, January 9, 2009

Unconventional Superconductivity

Scientists at U.S. Department of Energy's Argonne National Laboratory used inelastic neutron scattering to show that superconductivity in a new family of iron arsenide superconductors cannot be explained by conventional theories.

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