Authors: George Rajna
If the width of a narrow graphene nanoribbon changes, in this case from seven to nine atoms, a special zone is created at the transition.  Researchers working at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) coupled graphene, a monolayer form of carbon, with thin layers of magnetic materials like cobalt and nickel to produce exotic behavior in electrons that could be useful for next-generation computing applications.  Particles can exchange their spin, and in this way spin currents can be formed in a material.  Researchers have shown that certain superconductors—materials that carry electrical current with zero resistance at very low temperatures—can also carry currents of 'spin'.  The first known superconductor in which spin-3/2 quasiparticles form Cooper pairs has been created by physicists in the US and New Zealand.  Now a team of researchers from the University of Maryland (UMD) Department of Physics together with collaborators has seen exotic superconductivity that relies on highly unusual electron interactions.  A group of researchers from institutions in Korea and the United States has determined how to employ a type of electron microscopy to cause regions within an iron-based superconductor to flip between superconducting and non-superconducting states.  In new research, scientists at the University of Minnesota used a first-of-its-kind device to demonstrate a way to control the direction of the photocurrent without deploying an electric voltage.  Brown University researchers have demonstrated for the first time a method of substantially changing the spatial coherence of light.  Researchers at the University of Central Florida have generated what is being deemed the fastest light pulse ever developed.  Physicists at Chalmers University of Technology and Free University of Brussels have now found a method to significantly enhance optical force. 
Comments: 34 Pages.
[v1] 2018-08-10 06:05:22
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