Momentum distributions in positron annihilation with tightly bound electrons in Al

• Autorzy: Boroński E.
• Konferencja: Proceedings of the 40th Polish Seminar on Positron Annihilation PSPA'2012, 13-14 June 2012, Kazimierz Dolny, Poland
• Języki publikacji: EN

Abstrakty

EN

An approach based on Carbotte, Salvadori and Chiba two-body schemes for calculation of electron-positron (e-p) momentum densities ro(p) for core electrons in solids is developed. The approach allows to avoid such common approximations as the local density approximation (LDA) etc. in determination of ro(p) of deeper atomic shells and reduces the contribution to ro(p) for higher momenta. Thus, the final calculations of the Doppler spectra of annihilation radiation yield lower values for greater momenta than those obtained within the LDA scheme. The exemplary calculations for Al are presented.

Słowa kluczowe

EN

positron annihilation; electronic structure

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 1
• Strony: 211--214
• Opis fizyczny: BIbliogr. 22 poz., rys.

Twórcy

autor

Boroński E.

• Opole University, Institute of Physics, 48 Oleska Str., 45-052 Opole, Poland, Tel.: [phone], Fax: [phone],

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