Researchers discover that nickel oxide superconductors contain a phase of quantum matter, known as charge density waves, that’s common in other unconventional superconductors. In other ways, though, they’re surprisingly unique. Unconventional superconductors contain a mix of weird quantum states. Researchers found one of them — frozen electron ripples known as charge density waves — in a nickelate superconductor they discovered three years ago.
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Source: ScienceDaily