New research by University of British Columbia physicists indicates that high-temperature superconductivity in copper oxides is linked to what they term ‘incoherent excitations’–a discovery that sheds light on the electronic response of these materials before they become superconducting.
The study marks the first time researchers have been able to directly measure when electrons in a super conductor behave as independent well-defined particles, and when they evolve into ill-defined many-body entities.
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