A rocky landscape with a lake reflecting a yellow star in a purplish sky with clouds. An illustration of exoplanet Kepler-1649c orbiting around its host red dwarf star in the star’s habitable zone, ...

Although ionic γ-B 28 shares structural similarities with covalent α-B 12 (Fig. 1), its electronic structure is quite different: it shows little change of the bandgap with pressure and remains even at ...