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2015 promises to be a year for celebrating important discoveries in physics — an apt way to mark the International Year of Light. And, after ten years in print, Nature Physics looks forward to its own anniversary.
Monolayer films of iron selenide deposited on strontium titanate display signatures of superconductivity at temperatures as high as 109 K. These recent developments may herald a flurry of exciting findings concerning superconductivity at interfaces.