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2026
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Source-derived question
Why had physicists long assumed a two-dimensional carbon crystal could not be stable?
Graphene and 2D Materials
Sources that address it
Graphene isolated for the first time
almanac
Related questions
How can a magnetic field levitate a living frog without harming it?
How did Geim and Novoselov actually isolate a single-atom-thick sheet of carbon?
How did researchers use MoS₂ layers and van der Waals forces to squeeze molten metals into flat sheets?
What is a semiconductor heterostructure and why does it help control electrons and photons?
What later discovery made André Geim the only person to hold both an Ig Nobel and a Nobel Prize?
What later materials, like carbon nanotubes and graphene, trace their discovery back to this finding?
What physical properties make graphene stronger than steel and more conductive than copper?
What properties make graphene unusual compared to other known materials?