Twisted trilayer graphene supports existence of exotic superconductivity

An image showing twisted trilayer graphene

Source: © Polina Shmatkova & Margarita Davydova

‘Magic angle’ twist in three layers of graphene offers new insight into superconductivity current models can’t explain

The discovery of superconductivity in twisted bilayer graphene was among the most remarkable scientific discoveries of 2018. Now, researchers have shown that trilayer graphene can be a more robust and tunable superconductor, providing new insights into the phenomenon of superconductivity.1,2

Graphene famously conducts electrons as though they were massless particles like photons, which means that their speed does not depend on their energy. However, just as the speed of light varies in different materials, the speed of electrons in graphene can be controlled.