An experiment at SLAC National Accelerator Laboratory’s x-ray laser has revealed the first atomic-scale details of a new technique that could point the way to faster data storage in smartphones, laptops and other devices. Researchers used pulses of specially tuned light to change the magnetic properties of a material with potential for data storage.
An electrode designed like a pomegranate—with silicon nanoparticles clustered like seeds in a...
Scientists have grown sheets of an exotic material in a single atomic layer and measured its...
It's hard to study individual molecules in a gas...
Researchers have found a new way to probe molecules and atoms with an x-ray laser, setting off cascading bursts of light that reveal precise details of what is going on inside. The technique may allow scientists to see details of chemical reactions and home in on the properties of specific elements within complex molecules in a way not possible before.
A study shows, for the first time, that x-ray lasers can be used to generate a complete 3-D model of a protein without any prior knowledge of its structure. An international team of researchers working at the SLAC National Accelerator Laboratory produced from scratch an accurate model of lysozyme, a well-studied enzyme found in egg whites, using the Linac Coherent Light Source x-ray laser and sophisticated computer analysis tools.
A single layer of tin atoms could be the world’s first material to conduct electricity with 100% efficiency at the temperatures that computer chips operate, according to a team of theoretical physicists led by researchers from SLAC National Accelerator Laboratory and Stanford Univ.
Researchers have made the first battery electrode that heals itself, opening a new and potentially commercially viable path for making the next generation of lithium-ion batteries for electric cars, cell phones and other devices. The secret is a stretchy polymer that coats the electrode, binds it together and spontaneously heals tiny cracks that develop during battery operation.
It may sound like chasing rainbows: Detecting flashes of light and energy that are invisible to the human eye and last only for a trillionth of an eye-blink. These flashes hold clues to the nature of exotic subatomic particles, important biological proteins and massive space objects alike.To reveal new details about science at these extremes, a team of scientists is designing intricate signal-processing chips known as ASICs.
An international team of scientists have discovered a new type of quantum material whose lopsided behavior may lend itself to creating novel electronics. The material is called bismuth tellurochloride, or BiTeCl. It belongs to a class of materials called topological insulators that conduct electrical current with perfect efficiency on their surfaces, but not through their middles.
New evidence of heavy elements spread evenly between the galaxies of the giant Perseus cluster supports the theory that the universe underwent a turbulent and violent youth more than 10 billion years ago. That explosive period was responsible for seeding the cosmos with the heavy elements central to life itself.
Scientists have used the powerful x-ray laser at the SLAC National Accelerator Laboratory to create movies detailing trillionths-of-a-second changes in the arrangement of copper atoms after an extreme shock. The study pinpointed the precise breaking point when the extreme pressures began to permanently deform the copper structure, or lattice, so it could no longer bounce back to its original shape.
The same process that allows water to trickle through coffee grinds to create your morning espresso may have played a key role in the formation of the early Earth and influenced its internal organization, according to a new study by scientists at Stanford Univ.'s School of Earth Sciences.
In an advance that could dramatically shrink particle accelerators for science and medicine, researchers used a laser to accelerate electrons at a rate 10 times higher than conventional technology in a nanostructured glass chip smaller than a grain of rice.
Researchers hope to hijack a natural process called RNA interference to block the production of proteins linked to disease and treat medical conditions for which conventional drugs do not work, including cancer, heart disease, HIV and Parkinson’s disease. Scientists working at SLAC National Accelerator Laboratory took a significant step in that direction: They used x-rays to shed light on a key component of RNA interference in cells.
Scientists at SLAC National Accelerator Laboratory have found a new method to create coherent beams of twisted light—light that spirals around a central axis as it travels. It has the potential to generate twisted light in shorter pulses, higher intensities and a much wider range of wavelengths, including x-rays, than is currently possible.
When scientists found electrical current flowing where it shouldn't be—at the place where two insulating materials meet—it set off a frenzy of research that turned up more weird properties and the hope of creating a new class of electronics. Now scientists have mapped those currents in microscopic detail and found another surprise: Rather than flowing uniformly, the currents are stronger in some places than others.
When it comes to improving the performance of lithium-ion batteries, no part should be overlooked; not even the glue that binds materials together in the cathode, researchers at SLAC National Accelerator Laboratory and Stanford Univ. have found. Tweaking that material, which binds lithium sulfide and carbon particles together, created a cathode that lasted five times longer than earlier designs.
In an advance that will help scientists design and engineer proteins, a team including researchers from SLAC National Accelerator Laboratory and Stanford Univ. has found a way to identify how protein molecules flex into specific atomic arrangements required to catalyze chemical reactions essential for life.
A team of researchers within the Large Area Picosecond Photodetectors collaboration developed an advanced facility for testing large area photodetectors. The new facility, situated at Argonne National Laboratory, offers a level of spatial precision measured in micrometers and time resolutions at or below a picosecond.
Researchers at the SLAC National Accelerator Laboratory have clocked the fastest-possible electrical switching in magnetite, a naturally magnetic mineral. Their results could drive innovations in the tiny transistors that control the flow of electricity across silicon chips, enabling faster, more powerful computing devices.
The U.S. LHC Accelerator Program (LARP) has successfully tested a powerful superconducting quadrupole magnet that will play a key role in developing a new beam focusing system for CERN’s Large Hadron Collider (LHC). This advanced system, together with other major upgrades to be implemented over the next decade, will allow the LHC to produce 10 times more high-energy collisions than it was originally designed for.
John Hill, a Brookhaven National Laboratory scientist, and his team watched with eager anticipation as controllers ramped up the power systems driving SLAC National Accelerator Laboratory's x-ray laser in an attempt to achieve the record high energies needed to make his experiment a runaway success. To reach the high x-ray energies they were aiming for, all of the 80 klystrons associated with LCLS would need to operate at near-peak levels.
Researchers have made the first direct images of electrical currents flowing along the edges of a topological insulator. In these strange solid-state materials, currents flow only along the edges of a sample while avoiding the interior. Using an exquisitely sensitive detector they built, the team was able to sense the weak magnetic fields generated by the edge currents and tell exactly where the currents were flowing.
Scientists at the SLAC National Accelerator Laboratory in California have performed the first complete chemical analysis of feathers from Archaeopteryx, a famous fossil linking dinosaurs and birds. The new study, which revises understanding of the evolution of plumage, reveals that the feathers were patterned—light in color, with a dark edge and tip—rather than all black, as previously thought.
Scientists from SLAC National Accelerator Laboratory and Stanford Univ. have used finely tuned x-rays at the Stanford Synchrotron Radiation Lightsource to pin down the source of a mysterious magnetism that appears when two materials are sandwiched together. Why is this mysterious? Neither material shows a hint of magnetism on its own.
Researchers at SLAC National Accelerator Laboratory and Stanford Univ. have created a new device, smaller than a grain of rice, that could streamline optical data communications. It can directly identify the wavelength of light that hits it, and should scale down to the even tinier dimensions needed for multichannel optical data receivers on future generations of computer chips.
SLAC National Accelerator Laboratory and Stanford Univ. researchers have developed a new printing process for organic thin-film electronics that results in films of strikingly higher quality. The printing process called FLUENCE—fluid-enhanced crystal engineering—results in thin films capable of conducting electricity 10 times more efficiently than those created using conventional methods.
Pushing gold exploration to the nanoscale, scientists used SLAC National Accelerator Laboratory's Linac Coherent Light Source X-ray laser to produce a series of 3D images that detail a ringing effect in tiny gold crystals. The technique provides a unique window for studying why smaller is better for some specialized materials, including those used in chemical reactions and electronic components.
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