Mixing of wavefunctions

It should be pointed out that a somewhat different expression has been given for the Knight shift [32] and used in the analysis of PbTe data that in addition to the g factor contains a factor A. The factor A corresponds to the I PF(0) I2 probability above except that it can be either positive or negative, depending upon which component of the Kramers-doublet wave function has s-character, as determined by the symmetry of the relevant states and the mixing of wavefunctions due to spin-orbit coupling. 

The observed multiplets of 7F showed only a deviation of — 2.3 cm-1 from the calculated values. The agreement for the D multiplets was not so good due to strong mixing of wavefunctions. The splittings of the 7F multiplets in ethylsulphate and in Lads hosts are compared in Table 46. 

Configuration Interaction Cl) The mixing of wavefunctions representing different electronic configurations to obtain an improved wavefunction for a many-electron state. 

---