What is the core idea behind graphene research?
The core idea, if you can call it that, is that reducing dimensions can dramatically change material properties. Graphene, being a single layer of atoms, is the ultimate reduction. We found this 2D electron gas behaves like massless relativistic particles – Dirac fermions, as we called them in 'Two-dimensional gas of massless Dirac fermions in graphene'. It's astonishing how such a simple structure can lead to such exotic physics. It’s about exploring the extreme limits of materials and seeing what unexpected phenomena emerge. Forget grand theories; often, it’s the simple structure and elegant experiment that reveal the deepest truths.
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