Science Highlights

An interferogram showing the photoelectron energy vs. delay time between identical femtosecond pump and probe pulses, which excite coherent three-photon photoemission at a single crystal silver surface.

Exciton, Exciton on the Wall

For the first time, researchers detect how light excites electrons in metal. Read More »

Diamond optical cavities allow laser light (green arrow) to excite electrons on atoms held within the cavities, transferring information about the atoms outward via light (red arrow).

Miniscule Mirrored Cavities Connect Quantum Memories

New structures could accelerate progress toward faster computing and high-security data transfer across fiber optic networks. Read More »

Numerical simulation of the magnetic inhomogeneity (red = magnetism, blue = superconductivity) caused by replacing 1% of the indium atoms in a superconductor (CeCoIn5) with cadmium atoms.

A potential Rosetta Stone of high temperature superconductivity

Discovery paves the way to quantitatively investigate the interplay among magnetism, superconductivity and disorder in high temperature superconductors. Read More »

The polyborate anions wrap up the californium cations and bond to it at eight different sites.

Going Back to Californium: A Changing View of Covalency

Unusual structure, bonding, and properties may provide a new possibility for a californium borate. Read More »

Nucleobases (shown here is thymine) encode genetic information inside DNA.

Molecular Sunscreen: How DNA Protects Itself from UV Light

X-ray pulses from the Linac Coherent Light Source probe the molecular dynamics of photoexcitation. Read More »

Illustration of the catalytic oxygen reduction reaction on the surface of platinum-nickel nanoframes with multilayered platinum skin structure.

Multimetal Nanoframes Improve Catalyst Performance

Concentrating noble-metal catalyst atoms on the surface of porous nano-frame alloys shows over thirty-fold increase in performance. Read More »

The image on the left shows the general shape of a cubic CeO2 nanoparticle.

One Nanocrystal, Many Faces: Connecting the Atomic Surface Structures of CeO2 Nanocrystals to Catalysis

Imaging of cerium oxide nanocrystals provides new insights into the different behaviors of catalyst for emission control, other uses. Read More »

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

Optimizing Atomic Neighborhoods for Speedier Chemical Reactions

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

Perovskite nanowires have been found to function as shape-correlated stable light emitters.

All-Star Nanocrystals

Tiny semiconducting crystals show promise for solar cell architectures and light-emitting devices. Read More »

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

Spontaneous Formation of Biomimetic, Nanoporous Membrane Channels

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