The low-pressure phase I of solid hydrogen, which consists of freely rotating molecules on a hexagonal close-packed lattice 2, transforms at pressures of about 110 GPa to the broken-symmetry phase ...

The smallest repeating structure of a solid is called a unit cell, which is like a brick in a wall. Unit cells combine to form a network called a crystal lattice .

Understanding how molecular arrangements within crystals influence their thermal behavior is a fundamental question in ...

Covalent bonding forms substances with two types of structures: Molecular covalent structures.Simple molecules close molecule A collection of two or more atoms held together by chemical bonds ...

Controlling phase changes in solids A recent study demonstrates the rapid control of phase-changes in resonantly bonded materials Date: July 28, 2015 ...

In new work employing the photostrictive effect, researchers have fabricated a flexible two-dimensional (2D) charge transfer molecular (sub-nanometer) nanosheet and observed a sizeable photostrictive ...

When things heat up, most solids expand as higher temperatures cause atoms to vibrate more dramatically, necessitating more space. But some solid crystals, like scandium fluoride, shrink when ...