246
Index
Total spin operator, ˆ
S 2 , 5–13, 16, 34, 35, 41,
42, 52, 69, 73, 101, 131, 132, 135,
136, 174
Two-electron/two-orbital, 10, 31, 59, 61, 68,
74, 120, 124, 131, 137
V
Valence bond theory, 64, 66, 105
Van Vleck equation, 45, 77
W
Wannier orbital, 196
Weak overlap limit, 133
Y
Yamaguchi’s relation, 132, 134, 157
Z
Z-component of the spin operator, ˆ
S z , 5–7,
9, 11, 34, 35, 41–43, 47, 49, 52, 74,
207
Zeeman effect, 43, 49, 52
Zero field splitting, 39, 52
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