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Natural 3D Counterpart to Graphene Discovered

A natural 3D counterpart to 2D graphene with similar or even better electron mobility and velocity has been discovered at Berkeley Lab’s Advanced Light Source. This discovery promises exciting new things to come for the high-tech industry, including much faster transistors and far more compact hard drives.

A Deeper Look at Interfaces: Researchers at Berkeley Lab’s Advanced Light Source Develop New Technique for Probing Subsurface Electronic Structure

Researchers at Berkeley Lab’s Advanced Light Source have developed a technique that makes it possible for the first time to selectively study the electronic structure of buried interfaces in multilayer nanodevices. The technique is called SWARPES for Standing Wave Angle-Resolved Photoemission Spectroscopy.

Remembrances of Things Past: Berkeley Lab Researchers Discover Nanoscale Shape-Memory Oxide

Berkeley Lab researchers have discovered a way to introduce a shape memory effect in bismuth ferrite that is larger than any observed in a metal. This discovery opens the door to applications in a wide range of fields, including medical, energy and electronics.

New Twist in the Graphene Story:

Berkeley Lab researchers, working at the Advanced Light Source, have discovered that in the making of bilayer graphene, a tiny structural twist arises that can lead to surprisingly strong changes in the material’s electronic properties

Berkeley Lab Researchers Increase NMR/MRI Sensitivity through Hyperpolarization of Nuclei in Diamond

Berkeley Lab researchers have demonstrated the first magnetically-controlled nearly complete hyperpolarization of the spins of carbon-13 nuclei located near synthetic defects in diamond crystals. This spin hyperpolarization, which can be carried out with refrigerator-style magnets at room temperature, enhances NMR/MRI sensitivity by many orders of magnitude.

Whirlpools on the Nanoscale Could Multiply Magnetic Memory

Research at the Advanced Light Source promises four-bit magnetic cells instead of the two-bit magnetic domains of standard magnetic memories. Magnetic vortices are whirlpools of magnetic field, in which electron spins point either clockwise or counterclockwise. In the crowded center of the whirlpool the spins point either down or up. These four orientations can represent separate bits of information in a new kind of memory, if they can be controlled independently and simultaneously.

New Insight into an Intriguing State of Magnetism

Magnonics is an exciting extension of spintronics, promising novel ways of computing and storing magnetic data. What determines a material’s magnetic state is how electron spins are arranged (not everyday spin, but quantized angular momentum). If most of the spins point in the same direction, the material is ferromagnetic, like a refrigerator magnet. If half

Another Advance on the Road to Spintronics

Using a new technique called HARPES, for Hard x-ray Angle-Resolved PhotoEmission Spectroscopy, Berkeley Lab researchers have unlocked the ferromagnetic secrets of dilute magnetic semiconductors, materials of great interest for spintronic technology.

A Direct Look at Graphene

Berkeley Lab researchers have recorded the first direct observations at microscopic lengths of how electrons and holes respond to a charged impurity in graphene. The results point to interactions between electrons as being critical to graphene’s extraordinary properties.

Beyond the High-Speed Hard Drive: Topological Insulators Open a Path to Room-Temperature Spintronics

Berkeley Lab theorists and experimenters have led in the exploration of the unique properties of topological insulators, where electrons may flow on the surface without resistance and with their spin orientations and directions intimately related. Recent research at beamline 12.0.1 of the Advanced Light Source opens the way to exciting prospects for practical new spintronic devices that exploit control of electron spin as well as charge.