Recent research published by the CMT group in collaboration with Rutgers University uncover a novel way of achieving flat bands in through strain superlattices.
An international team led by researchers at Rutgers University in the US has found a way to create “flat? electronic bands - that is, electron states in which there is no relationship between the electrons’ energy and velocity - in graphene simply by causing the material to buckle. This new strategy could be used to produce so-called “superlattice? systems that serve as platforms for exploring the collective behaviour of electrons in strongly-interacting quantum systems. Such behaviour is known to be linked to high-temperature superconductivity, but a complete understanding is still lacking. ...
Flat bands appear in buckled graphene superlattices
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