Abstract
A series of polycrystalline Ag1-xInx alloys (x<or=0.20) in the alpha -phase was studied by positron lifetime measurements at room temperature. The spectra exhibit a single (bulk) lifetime component increasing with the In concentration x: tau (x)= tau (Ag)+x*27(5) ps. The annihilation rate was found to scale with the integral electron density. Alternative interpretations in terms of a pseudopotential approach and the separation of positrons annihilating with core, d10 and conduction electrons are discussed.
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