Physical Review B
The American Physical Society
In a spin-polarized electron gas, the effect of the exchange ͑x͒ and correlation ͑c͒ interactions can be incorporated into the dynamic response functions through spin-dependent local-ﬁeld corrections G x,c(,qជ). We obtain the zero-frequency and long-wavelength limits of G x,c(,qជ) by analyzing the connection between the macroscopic response function and the thermodynamic parameters of the system.
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