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The equivalence of several recent results on the spin susceptibility of the electron gas to the calculation of Brueckner and Sawada using the random-phase approximation (RPA) is reported. An error is pointed out in the exact high-density expansion of this quantity and a formula presented which is exact in the high-density limit and also accurately describes the RPA result at metallic densities.
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B. Sriram Shastry (1978) studied this question.
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