Packet 1: Bonus 19

Geim and Novoselov won the 2010 Nobel Prize in Chemistry for their isolation of this material via mechanical exfoliation with Scotch tape. For 10 points each:
[10e] Name this 2D conductive allotrope of carbon that can be rolled into 3D carbon nanotubes.
ANSWER: graphene [reject “graphite”]
[10h] Graphene’s half-integer quantum hall effect arises from six of these features that denote where its conduction and valence bands meet. Those six of these features, split into two sets denoted K and K-prime, are often observed using angle-resolved photoemission spectroscopy.
ANSWER: Dirac cones [or Dirac points]
[10m] Generating large quantities of graphene via this process may result in the loss of Dirac cones via symmetry-breaking or charge transfer. In this process, layers of crystalline material are deposited in a thin film that retains the orientation of the seed layer.
ANSWER: epitaxy [accept molecular beam epitaxy or MBE; prompt on chemical vapor deposition or CVD]
<Editors, Chemistry> | J. Playoffs 1 (Editors 1)

HeardPPBE %M %H %
1019.00100%60%30%

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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
BruinOhio State100010E
IndianaVirginia Tech10101030EHM
Maryland BNorth Carolina100010E
MinnesotaCambridge100010E
NYU AMaryland A1001020EM
Northwestern AColumbia A10101030EHM
Stanford AHarvard10101030EHM
Toronto BTexas1001020EM
UC Berkeley AToronto A100010E
UCLAMIT1001020EM

Summary

TournamentEditionMatchHeardPPBE %M %H %
Main Site2026-04-17✓1019.00100%60%30%