Newly published results offer compelling evidence that hydrogen is a metal at extremely high pressures. But is the research enough to convince the field at large that metallic hydrogen exists?

Under normal conditions, pure water is an almost perfect insulator. Water only develops metallic properties under extreme pressure, such as exists deep inside of large planets. Now, an international ...

A crystal is a solid material whose constituents atoms are arranged in a periodic fashion. A charge density wave (CDW) is a quantum mechanical phenomenon observed in some crystals with metallic ...

A computer simulation shows metallic alloy where atoms (colored spheres) are arranged in subtle chemical patterns beneath a network of dislocations (green lines). These tangled defects move during ...

Scientists have used diamond anvils to compress hydrogen into a form they believe is metallic. In Nature, researchers from the French Alternative Energies and Atomic Energy Commission (CEA) describe ...