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Surprising Superconductor Behavior Mapped at Nanoscale

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PRINCETON, N.J., June 1, 2007 -- A customized microscope has allowed the observation that patches of superconductivity can exist in ceramic superconductors at higher temperatures than previously thought, a discovery that may help improve scientific understanding of resistance-free electrical power. Princeton University researchers, who developed new techniques to image superconductors at the nanoscale, observed the unexpected behavior.Using a customized microscope, Princeton University scientists have mapped the strength of current-carrying electron pairs as they form in a ceramic superconductor. From the top left, the...Read full article

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    Published: June 2007
    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.
    microscope
    An instrument consisting essentially of a tube 160 mm long, with an objective lens at the distant end and an eyepiece at the near end. The objective forms a real aerial image of the object in the focal plane of the eyepiece where it is observed by the eye. The overall magnifying power is equal to the linear magnification of the objective multiplied by the magnifying power of the eyepiece. The eyepiece can be replaced by a film to photograph the primary image, or a positive or negative relay...
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    optical
    Pertaining to optics and the phenomena of light.
    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...
    superconductor
    A metal, alloy or compound that loses its electrical resistance at temperatures below a certain transition temperature referred to as Tc. High-temperature superconductors occur near 130 K, while low-temperature superconductors have Tc in the range of 4 to 18 K.
    Ali YazdaniatomBasic ScienceceramicCooper pairsmicroscopeMicroscopynanonanoscaleNews & FeaturesopticalphotonicsPrincetonscanning tunneling microscopessuperconductingsuperconductivitysuperconductorsuperfluidYazdani

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