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Keyword: cuprates

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  • Ultrathin Copper-Oxide Layers Behave Like Quantum Spin Liquid

    06/10/2011 8:04:58 AM PDT · by decimon · 14 replies
    Brookhaven National Laboratory ^ | June 10, 2011 | Unknown
    Surprising discovery may offer clues to emergence of high-temperature superconductivityUPTON, NY — Magnetic studies of ultrathin slabs of copper-oxide materials reveal that at very low temperatures, the thinnest, isolated layers lose their long-range magnetic order and instead behave like a “quantum spin liquid” — a state of matter where the orientations of electron spins fluctuate wildly. This unexpected discovery by scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and collaborators at the Paul Scherrer Institute in Switzerland may offer support for the idea that this novel condensed state of matter is a precursor to the emergence of...
  • Signs of a Stranger, Deeper Side to Nature’s Building Blocks

    07/09/2013 6:13:17 PM PDT · by SunkenCiv · 20 replies
    Simon Foundation ^ | July 1, 2013 | Natalie Wolchover
    If each energy field pervading space is thought of as the surface of a pond, and waves and particles are the turbulence on that surface, then the new evidence strengthens the argument that a vibrant, hidden world lies beneath. For decades, the surface-level description of the subatomic world has been sufficient to make accurate calculations about most physical phenomena. But recently, a strange class of matter that defies description by known quantum mechanical methods has drawn physicists into the depths below... Of all the strange forms of matter, cuprates -- copper-containing metals that exhibit a property called high-temperature superconductivity...