1 - 10 of 19 articles
The remarkable deformability of wood in a moist environment resembles that of ductile metals. A combination of traditional mechanical tests and cutting-edge diffraction experiments reveal the molecular mechanism that determines such behaviour.
Photonic crystal microcavities have been less able to trap light than their microsphere and microdisk counterparts. A new design concept shows how to stop the leaks.
Many atomic diffusion processes occur at rates that are too fast to observe experimentally. Using video scanning tunnelling microscopy, researchers are now able to observe the individual steps involved in correlated transport of atomic strings on metal surfaces.
A single-molecule anion made of 132 molybdenum atoms forms a spherical oxide cage that can bind several cations. Different cations have distinct binding modes and produce a wide range of architectures within the cage.
Mass transport processes on metal surfaces play a key role in epitaxial growth and coarsening processes. They are usually described in terms of independent, statistical diffusion and attachment/detachment of individual metal adatoms or vacancies
. Here we present high-speed scanning...
Single-walled carbon nanotubes (SWNTs) can be used as templates for the growth of low-dimensional inorganic materials whose structures and properties often differ greatly from those of the bulk
. Here we describe the detailed crystallography of an entire helical one-dimensional cobalt diiodide...
Nanometre-sized diamond has been found in meteorites
, protoplanetary nebulae
and interstellar dusts
, as well as in residues of detonation
and in diamond films
. Remarkably, the size distribution of diamond nanoparticles seems to be peaked around 2–5 nm, and to be largely...
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