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Palladium-nickel nanoparticles (top structural model) are synthesized and then exposed to reactive gases (lower right) while being probed with high-energy x-rays.March 2015Science Highlights

Optimizing Atomic Neighborhoods for Speedier Chemical Reactions

Clusters with longer separations between atoms had enhanced catalytic activity. Read More »

Depiction of carbon nanotube (gray) inserted into a cell membrane, with a single strand of DNA (gold) passing through the nanotube.March 2015Science Highlights

Spontaneous Formation of Biomimetic, Nanoporous Membrane Channels

Carbon nanotubes insert into artificial and active cell membranes, reproducing major features of biological channels. Read More »

Changes in the crystal structure and electronic properties of vanadium dioxide (VO2) occur during its insulator-to-metal phase transition (V blue; O red).March 2015Science Highlights

Insulator-to-Metal Transition of Vanadium Dioxide

New studies explain the transition, providing a quantitative picture of a 50-year-old mystery. Read More »

Electron density distribution (indicated by both the blue and red, as areas of deficiency and excess of electrons, respectively) in barium iron arsenide for undoped/nonsuperconducting and doped/superconducting alloys.February 2015Science Highlights

New Path to Loss-Free Electricity

Atomic-scale details of electron distribution reveal a novel mechanism for current to flow without energy loss. Read More »

Schematic image indicating the inferred intertwining of the superconducting wave function (green) with the envelope function (blue) for the atomic magnetism.February 2015Science Highlights

Intertwining of Superconductivity and Magnetism

Coexistence of two states of matter that normally avoid one another is revealed by inelastic neutron scattering experiments. Read More »

A metamaterial that consists of a two-dimensional array of U-shaped gold structures (square background in the picture) efficiently emits terahertz frequency electromagnetic waves (red axis) when illuminated by a wavelength tunable near-infrared pump laser (blue axis).February 2015Science Highlights

Metamaterials Shine Bright as New Terahertz Source

Discovery demonstrates how metamaterials may be used in non-invasive material imaging and sensing, and terahertz information technologies. Read More »

Crystal structure of the parent compound of a calcium-strontium-based cuprate superconductor [(Ca/Sr)2CuO3]...February 2015Science Highlights

Predicting Magnetic Behavior in Copper Oxide Superconductors

New theoretical techniques predict experimental observations in superconducting materials. Read More »

Oxygen ions can zigzag or take a circular route (red arrows) through this metal oxide crystal made of strontium (green), chromium (blue), oxygen (red) atoms...February 2015Science Highlights

Bringing Order to Defects - Making Way for Oxygen to Move

New metal oxide material works at temperatures low enough to improve fuel cell efficiency. Read More »

A series of x-ray scattering images are taken at ultrafast time intervals with an x-ray laser after excitation with an infra-red source that energizes the vibrational modes of a Germanium crystal.January 2015Science Highlights

X-ray Laser Used to Produce Movies of Atomic-scale Motion

Stroboscopic x-ray pulses scatter from a vibrating crystal and reveal how energy moves. Read More »

This graphical representation of lignocellulosic biomass based on supercomputer models illustrates a new study about the inner workings of plant cell walls during bioenergy production.December 2014Science Highlights

Breaking Down the Mechanisms of Biomass Deconstruction

Study reveals insights into plant structural changes during bioenergy pretreatments. Read More »