A 30-Year Superconductivity Mystery Just Took a Sharp Turn

New research sharpens understanding of the hidden symmetry in a mysterious superconductor. Superconductors are materials that allow electrical current to flow without any resistance, a property that typically appears only at extremely low temperatures. While most known superconductors follow established theoretical frameworks, strontium ruthenate, Sr₂RuO₄, has remained difficult to explain since researchers first identified its [...]