The
main topic for Spring 2007 will be group theory, as applied to
molecules, solids, and nanosystems. The
text for this part of the course will be Melvin Lax, Symmetry Principles in
Solid State and Molecular Physics (Dover, 1999) List price $24.95 Sale price at Amazon $17.71 |
This is the LUMO
-(1,2) state of a tiny model of a ZnO nanowire. "LUMO" means lowest unoccupied molecular orbital; this orbital is one of a doublet lying just below the singly degenerate HOMO ("highest unoccupied molecular orbital.) Simple ideas of molecular orbitals plus symmetry (group theory) allow you to predict things like this. (Figure from Xiao Shen cond-mat/0610002) |