(Nanowerk News) Researchers from the University of Rostock and Technion Haifa have created the first three-dimensional topological insulator for light. A judiciously placed screw dislocation allows ...

The relaxed state of a type of topological defect (screw dislocation) located in a dispersive (non-local) elastic solid is discussed from a viewpoint of gauge field theory. The starting point of this ...

· Screw Dislocations can participate in crystal growth by providing locations for atom addition that are self renewing. · A growth spiral due to a screw dislocation in Silicon Carbide are shown. The ...