The cool, unbothered older sister/cousin. Witty, sharp, and emotionally two steps ahead of everyone, she’s the kind of kid who could run a scam ring at recess. She doesn’t rattle under pressure and ...

A study of phase transitions in two-dimensional halide perovskites uncovers distinct thermal and optical pathways through Ginzburg–Landau theory. The work identifies an optically driven metastable ...