Researchers probe the properties of novel 'topological insulators'

Researchers from the NIST Center for Nanoscale Science and Technology (CNST), the University of Maryland, and Seoul National University, Korea have achieved electric-field control of the energy levels at the surface of two potentially important materials, bismuth selenide (Bi2Se3) and antimony telluride (Sb2Te3). These materials are topological insulators, which are hybrid materials that are electrical insulators in their interiors but are exotic, graphene-like conductors at their surfaces.

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