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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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