Electronics: A step toward valleytronics

Valley-based electronics, also known as valleytronics, is one step closer to reality. Researchers have now shown that the valley degree of freedom in graphene can be polarized through scattering off a line defect. Unlike previously proposed valley filters in graphene, which rely on confined structures that have proven hard to achieve experimentally, the present work is based on a naturally occurring line defect that has already been observed.

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