superconductivity

Researchers report a way to strengthen a superconductor by exploiting what they call empty space, according to a new study covered by ScienceDaily. The finding suggests that voids within the material's structure can be engineered to improve its superconducting performance rather than weaken it. Details of the material, team and mechanism are not specified in the available coverage.

Physicists report detecting Cooper pairs persisting above the superconducting critical temperature within pair density waves, a phase previously thought to exist only below the threshold where resistance vanishes. The finding, covered by Phys.org, suggests superconducting correlations can survive into a regime where they do not produce zero resistance, sharpening debates over how unconventional superconductors like cuprates behave near their transition point.

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.

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.

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 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.

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 the first known superconductor that breaks time symmetry, a discovery described as a first of its kind. In such a state, the material's behaviour changes under time reversal, something ordinary superconductors do not do. If confirmed, the finding would open a new class of superconducting materials and interest researchers studying exotic quantum phases.