Effective-field theory of local-moment formation in disordered metals

Milica Milovanović, Subir Sachdev, R. N. Bhatt

Research output: Contribution to journalArticlepeer-review

144 Scopus citations


We present a simple new effective-field theory for the metallic state of a disordered interacting Fermi liquid, taking into account its instability towards the formation of local-moment states. We find a generalization of the compensation theorem of the single-impurity Anderson model, namely that strongly localized magnetic instabilities occur even when the mean-field single-quasiparticle states are extended. The theory clarifies the understanding of recent thermodynamic and spin-resonance measurements in phosphorus-doped silicon.

Original languageEnglish (US)
Pages (from-to)82-85
Number of pages4
JournalPhysical review letters
Issue number1
StatePublished - 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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