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Related Experiment Videos

Superconducting Metastable Compounds.

H L Luo, M F Merriam, D C Hamilton

    Science (New York, N.Y.)
    |August 7, 1964
    PubMed
    Summary
    This summary is machine-generated.

    Researchers discovered new superconducting materials, including silver telluride (AgTe3) and gold-germanium (Au-Ge) alloys. These findings expand the range of known superconductors and their critical temperatures.

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    Area of Science:

    • Materials Science
    • Condensed Matter Physics
    • Solid State Chemistry

    Background:

    • Superconductivity in metallic alloys is a key area of materials science research.
    • Metastable phases of germanides and tellurides offer potential for novel electronic properties.

    Purpose of the Study:

    • To synthesize and characterize metastable germanides and tellurides of gold and silver.
    • To investigate the superconducting properties of these newly prepared materials.

    Main Methods:

    • Preparation of metastable phases of gold and silver germanides and tellurides.
    • X-ray diffraction analysis for structural characterization.
    • Superconductivity measurements to determine transition temperatures.

    Main Results:

    Related Experiment Videos

    • Identified new superconductors: AgTe3 (Tc = 2.6 K), Ag4Ge (Tc = 0.85 K), Au3Te5 (Tc = 1.62 K).
    • Discovered a range of superconducting Au1-xGex alloys (Tc = 0.99–1.63 K for 0.27 ≤ x ≤ 0.60).
    • Au-Ge compositions outside this range did not superconduct above 0.32 K.

    Conclusions:

    • Successfully synthesized and characterized novel superconducting metastable phases.
    • The study expands the library of known superconducting materials, particularly in gold and silver systems.
    • Compositional tuning in Au-Ge alloys significantly impacts superconducting behavior.