Researchers at Xidian University demonstrated wurtzite ferroelectric memory based on aluminum scandium nitride (AlScN) exceeding 10 billion write cycles while maintaining electrical polarization. The breakthrough uses an AlScN/AlN superlattice structure to confine nitrogen vacancies and prevent defect migration that causes device degradation. The result represents a laboratory advance toward practical nonvolatile memory, though production viability remains uncertain.
Shannon-Leigh Litt, a 47-year-old New Zealand criminal barrister, completed 1000 consecutive ultramarathons (51km each) in 1000 days, setting a Guinness World Record. Running through diverse climates and conditions across multiple countries, she relied on self-taught nutrition strategies and perseverance to achieve the feat without professional support.