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Equipotential energy contours (Fermi surfaces) for a tight-binding model on a square lattice

Equipotential energy contours (Fermi surfaces) for a tight-binding model on a square lattice. Cubic lattice. E=0.3. E=3.0. E=4.0. E=5.0. Isoenergetic surfaces in graphene. energy. velocity. acceleration. k. E. Bloch oscillations. F. Severe damping!. Superlattice.

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Equipotential energy contours (Fermi surfaces) for a tight-binding model on a square lattice

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  1. Equipotential energy contours (Fermi surfaces) for a tight-binding model on a square lattice

  2. Cubic lattice E=0.3 E=3.0 E=4.0 E=5.0

  3. Isoenergetic surfaces in graphene

  4. energy velocity acceleration k

  5. E Bloch oscillations F Severe damping!

  6. Superlattice http://upload.wikimedia.org/wikipedia/commons/6/63/GaAs-AlAs_SL.JPG

  7. Antidots on graphene Lateral superlattice on GaAs Antidots on GaAs

  8. Experimental observation of Bloch oscillations

  9. Al: density of states Bandstructure: theory Theory DOS: experiment

  10. Van Hove Singularities

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