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Laser ARPES helps explain superconductivity

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Ashley N. Paddock, [email protected]

A new ultrafast laser angle-resolved photoemission spectroscopy (ARPES) technique may soon help scientists realize some of the biggest obstacles to the electronic states of high-temperature superconductors so that they may one day put these energy-saving metals to practical use. Superconductivity, in which electric current flows without resistance, promises significant energy savings, but for everyday applications such as low-voltage electric grids with no transmission losses or super-efficient motors and generators, conventional superconductivity cannot do the job. Superconductors must...Read full article

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    Published: August 2012
    Glossary
    cooper pairs
    The coupled pairs of electrons that carry supercurrents through the body of a superconductor, relative to a coherent macroscopic wave function with the superconductor.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    AmericasARPESBerkeley LabBi2212CaliforniaChristopher SmallwoodCooper pair formationCooper pairsfemtosecond precisionhigh-Tc superconductorshigh-temperature superconductivityLawrence Berkeley National Laboratoryphotonicsprobe pulsesquasiparticlesResearch & TechnologySensors & Detectorssuperconducting gapsuperconductivitysuperconductorsTech Pulseultrafast laser angle-resolved photoemission spectroscopyultrafast laser ARPESultrafast lasersUniversity of California BerkeleyUS Department of EnergyLasers

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