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MixingKerkerFactor

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MixingKerkerFactor

Section SCF::Mixing
Type float
Default 1.0

The screening factor, $q_0$ in the Kerker preconditioner in units of inverse length. For small wave vectors, q, screening behaves like $\frac{Aq}{q_0}$, where A is the mixing coefficient. An optimal value is determined empirically for a given system and mixing coeffient, however the default is a reasonable choice in many cases.

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