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XRD1 Highlights

Cuprate Superconductor

The disposition of defects in metal oxides is a key attribute exploited for applications from fuel cells and catalysts to superconducting devices and memristors.

This study reports the X-ray writing of high-quality superconducting regions, derived from defect ordering, in the superoxygenated layered cuprate, La2CuO4+y. Irradiation of a poor superconductor prepared by rapid thermal quenching results first in the growth of ordered regions, with an enhancement of superconductivity becoming visible only after a waiting time, as is characteristic of other systems such as ferroelectrics, where strain must be accommodated for order to become extended.

Retrieve Article

Evolution and control of oxygen order in a cuprate superconductor;
Nicola Poccia, Michela Fratini, Alessandro Ricci, Gaetano Campi, Luisa Barba, Alessandra Vittorini-Orgeas, Ginestra Bianconi, Gabriel Aeppli, Antonio Bianconi; Nature Materials (2011) 10.1038/nmat3088

Ultima modifica il Lunedì, 15 Luglio 2019 13:50