Phys. Rev. B 30, 5336–5338 (1984)Spin susceptibility and spin-spin relaxation in superconductorsReceived 9 May 1984; published in the issue dated 1 November 1984 It is shown that the conduction-electron spin susceptibility χ(r) and thus the indirect interaction between magnetic impurities in superconductors can lead to new behavior in very dilute systems that is absent at higher impurity concentrations and that is compatible with recent experiment. In the superconducting state we find that χ(r) decays exponentially at all r, the spin-spin coupling can be antiferromagnetic at intermediate r, and the spin-spin relaxation rate depends markedly on Fermi-surface anisotropy. © 1984 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.30.5336
DOI:
10.1103/PhysRevB.30.5336
PACS:
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