superconductivity

Researchers report they have made a superconductor stronger by using what they describe as 'empty space'. The finding suggests that introducing structural voids or vacuum-based effects can improve a superconductor's performance rather than weaken it. The result is drawing attention from physics and materials science communities interested in better superconducting materials for technology and energy applications.

Researchers report that Cooper pairs — pairs of electrons responsible for superconductivity — can persist above a superconductor's critical temperature within pair density waves. The finding suggests pairing survives in some form even when the material no longer conducts electricity without resistance. Physicists say the observation could reshape understanding of how superconductivity emerges, particularly in unconventional superconductors.

Researchers report that Cooper pairs in uranium ditelluride persist above the material's superconducting critical temperature, a phenomenon described as 'ghostly' because the pairs exist without producing zero resistance. The finding, highlighted by science outlets, suggests superconducting correlations survive into the normal state, deepening the mystery of unconventional superconductors and potentially informing future quantum technologies.

Researchers report in Nature that quantum geometry can enhance superconductivity, with a superpotential mechanism strengthening the superconducting state and giving it unusually robust stiffness against disruption. The finding suggests geometry of quantum states, not only electron pairing, shapes how superconductors behave, opening a possible route to more resilient superconducting materials.

Scientists report that measurements lasting just a few picoseconds can reveal the point at which superconductivity breaks down. The finding offers a new window into how superconducting states collapse under extreme conditions, a question central to both fundamental physics and future technologies such as lossless power grids and quantum devices. Details of the research and the community's reaction are not yet clear from available information.

Physicists report the discovery of the first type I superconductor that breaks time-reversal symmetry, a property previously associated only with more exotic superconducting materials. The finding challenges established classifications of superconductors and could open new avenues for studying unconventional superconductivity, prompting interest across the physics community.

Physicists report finding Cooper pairs surviving above the critical temperature at which a material normally becomes superconducting. The pairs appear within pair density waves, a modulated electronic state, and the discovery is likened to the Cheshire Cat's grin: superconductivity's signature lingering without the superconducting phase itself. The finding challenges assumptions about how the superconducting transition works and may reshape understanding of high-temperature superconductors.