Removing excess iron reveals FeTe as a superconductor, and its properties can be engineered using layered structures and moiré effects.

Superconductivity—the ability of a material to conduct electricity without any energy loss to heat—enables highly efficient, ...

Hollow atoms are special atoms with multiple missing electrons in their inner shells, while their outer shells are still fully or partially filled with electrons. Studying the production mechanisms, ...

The ability to describe the internal structure of atoms is important not only for understanding the composition of matter, but also for designing new experiments to explore fundamental physics.