A research team led by the Ningbo Institute of Materials Technology and Engineering (NIMTE), CAS, has achieved a breakthrough in spintronics by demonstrating that nonsymmorphic symmetry in hexagonal SrIrO₃ protects topological Dirac semimetal states. This unique electronic structure leads to record-breaking charge-spin conversion efficiency, enabling magnetic switching with ultra-low power dissipation. The study establishes a robust and universal criterion for designing future energy-efficient spintronic devices.

New research examines Finnish lower secondary special needs math instruction via a survey of teachers, focusing on topics taught, preparedness, and instructional practices. Teachers report high confidence overall, but gaps remain in data processing, statistics, and probability. While guided practice and feedback are common, high-impact strategies such as mastery learning, scaffolding, peer tutoring, and structured sequences are used inconsistently. Findings reveal a disconnect between preparation and classroom practice, highlighting the need for targeted training and support.