Electron states in dilute disordered alloys

Edward A. Stern

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


A simple model is considered of an alloy consisting of a free-electron gas with a dilute concentration of impurities. Electron states at the Fermi energy have a spread in wave numbers which blurs the Fermi surface. Only up to second order in perturbation theory is the average wave number of an alloy state the same as that given by the rigid-band model. A renormalization of the alloy wave function occurs which decreases the weight of that part of the state that is associated with a given wave number. The effect of renormalization shows itself in positron-annihilation experiments in alloys as an apparent decrease in the number of electrons in the vicinity of the Fermi momentum.

Original languageEnglish
Pages (from-to)730-736
Number of pages7
JournalPhysical Review
Issue number3
StatePublished - 1968
Externally publishedYes


Dive into the research topics of 'Electron states in dilute disordered alloys'. Together they form a unique fingerprint.

Cite this