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Lecture 6: Graphene PN Junctions

22 Sep 2009 | | Contributor(s):: Mark Lundstrom

Outline:IntroductionElectron optics in grapheneTransmission across NP junctionsConductance of PN and NN junctionsDiscussionSummary

Homework: WKB Approximation

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09 Jul 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

www.eas.asu.edu/~vasileskNSF

Quantum Mechanics: WKB Approximation

In physics, the WKB (Wentzel–Kramers–Brillouin) approximation, also known as WKBJ (Wentzel–Kramers–Brillouin–Jeffreys) approximation, is the most familiar example of a semiclassical calculation in quantum mechanics in which the wavefunction is recast as an exponential function, semiclassically...