a, TEM image of a ∼ 3-nm silicon nitride nanopore. b, Solid-state nanopore microscope used to obtain electrical signals from single DNA molecules.c, Characteristic signals showing transient ...

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 ...

Pressure-Temperature phase diagram of oxygen. History of Research Work . Until now, as possible models for the ε-phase structure, the O 4 model of a pair of O 2 molecules (estimated from optical ...