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Edge States of Graphene Nanoribbons Discovered

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BERKELEY, Calif., May 10, 2011 — Using a scanning tunneling microsope, researchers have made the first precise measurements of the "edge states" of well-ordered graphene nanoribbons. For nearly two decades, theorists have envisioned that nanoribbons, depending on their width and the angle at which they are cut, would have unique electronic, magnetic and optical features – including bandgaps such as those in semiconductors – which sheet graphene does not have. Graphene nanoribbons are narrow sheets of carbon atoms only one layer thick. Their width, and the angles at which the edges are cut produce a...Read full article

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    Published: May 2011
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    Americasarmchair edgeBasic ScienceChenggang Taochiral vectoredge statesgraphene nanoribbonsgraphene-nanoribbon switchesHongjie DaiindustrialLawrence Berkeley National LaboratoryMichael CrommieMicroscopynanoOleg YazyevOpticsResearch & Technologyscanning tunneling microscopesSensors & Detectorsspin valvesStanford UniversitySteven LouieTest & Measurementtunable giant magnetoresistancetwo-dimensional graphene sheetsUniversity of California at Berkeleyunzipping carbon nanotubesUS Department of Energy

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