Quantum Physics


Double Life Superconductor

Authors: George Rajna

Now scientists have probed the superconducting behavior of its electrons in detail for the first time. They discovered it's even weirder than they thought. Yet that's good news, they said, because it gives them a new angle for thinking about what's known as "high temperature" superconductivity, a phenomenon that could be harnessed for a future generation of perfectly efficient power lines, levitating trains and other revolutionary technologies. [36] University of Groningen physicists, and colleagues from Nijmegen and Hong Kong, have induced superconductivity in a monolayer of tungsten disulfide. [35] One can also imagine making a superconducting transistor out of graphene, which you can switch on and off, from superconducting to insulating. That opens many possibilities for quantum devices." [34] A team of scientists has detected a hidden state of electronic order in a layered material containing lanthanum, barium, copper, and oxygen (LBCO). [33] Now in a new study, researchers have discovered the existence of a positive feedback loop that gratly enhances the superconductivity of cuprates and may shed light on the origins of high-temperature cuprate superconductivity— considered one of the most important open questions in physics. [33]

Comments: 30 Pages.

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[v1] 2018-03-21 09:16:18

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