Topological Graphene Nanoribbon (IMAGE)

University of California - Berkeley

Topological Graphene Nanoribbon

Caption

This is a scanning tunneling microscope image of a topological nanoribbon superlattice. Electrons are trapped at the interfaces between wide ribbon segments (which are topologically non-trivial) and narrow ribbon segments (which are topologically trivial). The wide segments are 9 carbon atoms across (1.65 nanometers) while the narrow segments are only 7 carbon atoms across (1.40 nanometers).

Credit

Michael Crommie, Felix Fischer, UC Berkeley

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