Lecture 6

2 n 13 f pf pf 3 1 3 f 1average inter electron

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Unformatted text preview: nz = 1 = (1,1,1) Note: (2,1,1) and (1,2,1) and (1,1,2) are degenerate with degree of degeneracy = 3 y For the state: (1,2,6) 1+4+36=41 (1,2,6) (1,6,2) (2,1,6) (2,6,1) (6,1,2) (6,2,1) (4,4,3) (4,3,4) (3,4,4) At higher energies, degree of degeneracy grows 12 For 3D, what is EF? •  For a given E, how many states have energy <E? E 2 2 ! R2 •  i.e. how many set of triplet integers saIsfy: (nx + ny + nz2 ) ! E1 n z Amounts to finding the number of l...
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