Scientists create novel approach to control energy waves in 4D

Everyday life involves the three dimensions (3D), along an X, Y and Z axis, or up and down, left and right, and forward and back. But in recent years scientists, like Guoliang Huang, the Huber and Helen Croft Chair in Engineering ...

Scientists discover exotic quantum state at room temperature

For the first time, physicists have observed novel quantum effects in a topological insulator at room temperature. This breakthrough, published as the cover article of the October issue of Nature Materials, came when Princeton ...

Exploring quantum electron highways with laser light

Topological insulators, or TIs, have two faces: Electrons flow freely along their surface edges, like cars on a superhighway, but can't flow through the interior of the material at all. It takes a special set of conditions ...

Quasi-symmetry in CoSi reveals new type of topological material

Ever since the discovery of the quantum Hall effect (Nobel Prize 1985), symmetry has been the guiding principle in the search for topological materials. Now an international team of researchers from Germany, Switzerland, ...

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