Journal of Physical Studies 4(3), 306–312 (2000) DOI: https://doi.org/10.30970/jps.04.306 THE CRITERIA FOR CHOOSING A PSEUDOPOTENTIAL IN THE THEORY OF METALS V. Fourman Ivan Franko National University of Lviv, Chair of Theoretical Physics 12 Drahomanov Str., Lviv, UA-79005, Ukraine E-mail: fourman@ktf.franko.lviv.ua

A study of the criteria for building the potentials of electron-ion interection from the phase functions properties in one-electron approximation has been carried out. The expediency of choosing the metal pseudopotential should proceed from the properties of the solutions of the scattering theory phase equation. Attaing the existence condition for partial amplitude dispertion pole proves to combine the methods of the pseudopotential and quantum defects.

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