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Search results for Dirac cones

Nanomaterials Jul 24, 2011

Graphene's 'quantum leap' takes electronics a step closer

(Âé¶¹ÒùÔºOrg.com) -- Writing in the journal Nature Âé¶¹ÒùÔºics, the academics, who discovered the world's thinnest material at The University of Manchester in 2004, have revealed more about its electronic properties.

Nanomaterials Jul 15, 2011

Graphene gives up more of its secrets

Graphene, a sheet of carbon only a single atom thick, was an object of theoretical speculation long before it was actually made. Theory predicts extraordinary properties for graphene, but testing the predictions against experimental ...

General Âé¶¹ÒùÔºics Jun 29, 2011

A remarkable step toward next-generation energy-conservation

Tohoku University, Osaka University and Japan Science and Technology Agency (JST) announced that they succeeded in directly observing electron spins in a topological insulator. The work has been published in Âé¶¹ÒùÔºical Review ...

General Âé¶¹ÒùÔºics Aug 10, 2010

Topological insulators take two steps forward

A team of researchers from the Stanford Institute of Materials and Energy Science, a joint institute of the Department of Energy's SLAC National Accelerator Laboratory and Stanford University, and their international collaborators ...

Nanophysics May 20, 2010

Plasmonic Promises: First Observation of Plasmarons in Graphene

(Âé¶¹ÒùÔºOrg.com) -- The energy bands of complex particles known as plasmarons have been seen for the first time by scientists working with graphene at the Advanced Light Source. Their discovery may hasten the day when these ...

General Âé¶¹ÒùÔºics May 15, 2009

Super-efficient Transistor Material Predicted

(Âé¶¹ÒùÔºOrg.com) -- New work by condensed-matter theorists at the Stanford Institute for Materials and Energy Science at SLAC National Accelerator Laboratory points to a material that could one day be used to make faster, more ...

General Âé¶¹ÒùÔºics Jul 21, 2008

First STM spectroscopy of graphene flakes yields new surprises

(Âé¶¹ÒùÔºOrg.com) -- Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley have performed the first scanning tunneling spectroscopy of graphene flakes ...

General Âé¶¹ÒùÔºics Jun 8, 2008

Surprising graphene: Honing in on graphene electronics with infrared synchrotron radiation

Graphene is the two-dimensional crystalline form of carbon: a single layer of carbon atoms arranged in hexagons, like a sheet of chicken wire with an atom at each nexus. As free-standing objects, such two-dimensional crystals ...

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