[HandyDandy]

Graphene is a zero-gap semiconductor, because its conduction and valence bands meet at the Dirac points. The Dirac points are six locations in momentum space, on the edge of the Brillouin zone, divided into two non-equivalent sets of three points. The two sets are labeled K and K'. The sets give graphene a valley degeneracy of gv = 2. By contrast, for traditional semiconductors the primary point of interest is generally Γ, where momentum is zero. Four electronic properties separate it from other condensed matter systems.

[Falconspeed]

“The sets give graphene a valley degeneracy of gv = 2.” Impressive. I hope to understand after studying physics in ten years. Batteries: No such thing as a free lunch.

[fella]

How long will it run the phone before it goes tits-up? iphones are dead at about 2 to 3 hours.

[SandwicheGuy]

Graphene is a zero-gap semiconductor, because its conduction and valence bands meet at the Dirac points. The Dirac points are six locations in momentum space, on the edge of the Brillouin zone, divided into two non-equivalent sets of three points. The two sets are labeled K and K'. The sets give graphene a valley degeneracy of gv = 2. By contrast, for traditional semiconductors the primary point of interest is generally Γ, where momentum is zero. Four electronic properties separate it from other condensed matter systems.

I'm pretty sure this is an eloquent and reasoned explanation of carbon conductors. I understood the first and lat words in the paragraph....Dirac points???? I enjoyed reading it, thanks for posting.

[bluejean]

“The sets give graphene a valley degeneracy of gv = 2”

Free associating to Ellen DeGeneres, I then thought Graphene could be a good stage name for a drag queen, with a gay velocity of 2. After that, I realized my thoughts hurt, and it’s late.