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Artist conception highlights electron behavior in a single layer of iron-selenium atoms (red and purple) on a strontium titanate layer (blue pyramid shapes).December 2015Science Highlight

Vibrations Raise the Critical Temperature for Superconductivity

Scientists reveal that coupling between electrons and atomic vibrations play a key role in this vexing phenomenon. Read More »

In an iron-based superconductor, model patterns of electron spins show two competing liquid-like magnetic phases. (Positive spins correspond with yellow and red, while negative spins are green and black.)December 2015Science Highlight

Magnetic Dance at the Threshold of Superconductivity

Near the onset of superconductivity, continuous exchange of electrons occurs between distinct, liquid-like magnetic phases in an iron-based superconductor. Read More »

X-rays can characterize the motion of atomic-scale defects (for example, dislocations) relative to the morphology of a nanoparticle in the electrode of an operating lithium-ion battery. The dislocations are extra planes of atoms inserted into the atomic lattice.December 2015Science Highlight

Tracking Hidden Imperfections Inside Operating Lithium-ion Batteries

Penetrating x-rays can image defects and phase changes during battery charging and discharging. Read More »

Simulation of stretching of a silver nanowire accurately shows the entire process from “necking” (thinner regions in the wire) to the formation of a new phase (red portion in the last image).December 2015Science Highlight

When Small Things Become a Big Deal

Computer-simulated atomic motion answers real-world questions like “How do things break?” Read More »

Short laser pulses (the wide red arrow) on the order of femtoseconds (one quadrillionth of a second) changed the electronic properties of a material (the brown hexagonal shape) by triggering phase transitions.December 2015Science Highlight

Lasers Leave a Mark on Materials - At the Atomic Level

Ultrafast laser shots act like dopants to create new electronic properties in materials. Read More »

Advanced electron microscopy technique permits the simultaneous collection of both signals: secondary electron (that are sensitive to the surface) and transmitted electron.December 2015Science Highlight

Atomic-Level Measurements of Rough Surfaces

Researchers use surface-sensitive signals to atomically resolve the structure of a rough surface. Read More »

Whether a solid or liquid forms from charged polymers depends on the “handedness” of the oppositely charged polymer chains.December 2015Science Highlight

Will It Be a Solid or a Liquid? The Molecular Structure Has the Answer

Oppositely charged polymer chains can be “right-handed,” “left-handed,” or have no “handedness” at all, which controls whether a solid or liquid forms. Read More »

A scanning probe microscope (SPM) can detect two similar signals, which could lead to ambiguous identification of ferroelectric materials.December 2015Science Highlight

Ferroelectricity – Ambiguity Clarified, and Resolved

Novel technique accurately distinguishes rare material property linked to improving sensors and computers. Read More »

The width of a graphene nanoribbon determines its electronic properties, but controlling that width at the atomic scale is a challenge.December 2015Science Highlight

Legos for the Fabrication of Atomically Precise Electronic Circuits

Pre-designed molecular building blocks provide atomic-level control of the width of graphene nanoribbons. Read More »

November 2015Science Highlight

One Photon or Two?

First mixed matter/anti-matter probe aims to solve decade-old proton puzzle. Read More »

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