Relation of Spin-Fluctuation-Induced Mass Renormalization to Nuclear Magnetic Relaxation in Transition Metals and Alloys

Abstract

General formulas are derived for the enhancement of low‐temperature electronic specific heat and nuclear relaxation rate by spin fluctuations occurring in an electron gas near a magnetic instability. It is pointed out that this enhancement will occur near a transition to an antiferromagnetic state of the spin density wave type despite the fact that the bulk $\text{(q\hspace{0.17em}=\hspace{0.17em}0)}$ susceptibility will remain finite.