Electron pairing in the pseudogap state revealed by shot noise in copper oxide junctions

(University of Connecticut) Physicists used to think that superconductivity -- electricity flowing without resistance or loss -- was an all or nothing phenomenon. But new evidence suggests that, at least in copper oxide superconductors, it's not so clear cut. Researchers at UConn observed electrons in these materials traveling in coherent pairs, a hallmark of superconductivity, at much higher temperatures than those at which the material superconducts. The observation constrains condensed matter theory, and may give clues to practical high-temperature conductors.

Electron pairing in the pseudogap state revealed by shot noise in copper oxide junctions

Nature, Published online: 21 August 2019; doi:10.1038/s41586-019-1486-7Shot-noise measurements in copper oxides reveal paired charge carriers existing in the pseudogap above ...

Wed 21 Aug 19 from Nature News

'Electron pairing' found well above superconductor's critical temperature

Physicists have found "electron pairing," a hallmark feature of superconductivity, at temperatures and energies well above the critical threshold where superconductivity happens.

Wed 21 Aug 19 from Phys.org

Measuring the Charge of Electrons in a High-Temp Superconductor

The measurements could inform the search for new materials that perfectly conduct electricity at relatively higher temperatures.

Wed 21 Aug 19 from Newswise

Measuring the charge of electrons in a high-temp superconductor, Wed 21 Aug 19 from Eurekalert

Electrons in high temperature superconductors may not obey the normal rules of pairing

Physicists used to think that superconductivity -- electricity flowing without resistance or loss -- was an all or nothing phenomenon. But new evidence suggests that, at least in copper oxide ...

Wed 21 Aug 19 from ScienceDaily

Breaking up is hard to do

(University of Connecticut) Physicists used to think that superconductivity -- electricity flowing without resistance or loss -- was an all or nothing phenomenon. But new evidence suggests that, ...

Wed 21 Aug 19 from Eurekalert

A hallmark of superconductivity, beyond superconductivity itself

(Rice University) Physicists have found 'electron pairing,' a hallmark feature of superconductivity, at temperatures and energies well above the critical threshold where superconductivity occurs.

Wed 21 Aug 19 from Eurekalert

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