Susceptibility parameterization

In computational practice, such solutions are restricted by the approximation that the solvent is uniform and isotropic. It defines in the real space the susceptibility kernel as x(r, r ) = x( (r - f ). The counterpart in the -domain obtained via Fourier transform, reads x(k) = x(k), where k = k. The representation for s is similar. Parameterization... 

This correlation has been used in the work of Konig and Kremer212-213) who parameterized the experimental susceptibility data by a temperature dependent energy separation e(T) = E(5T2) - E( Ax) determined by the ligand field strength. 

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