- Tytuł:
- Influence of Many-Body Effects in Real Metals on Electron-Positron Momentum Distributions
- Autorzy:
- Boroński, E.
- Powiązania:
- https://bibliotekanauki.pl/articles/1196046.pdf
- Data publikacji:
- 2014-03
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.70.Bj
71.18.+y
71.60.+z
71.15.Mb
71.10.Ca - Opis:
- It is shown that if one takes into account the effective mass of the electron, which in real structures is actually different than the free electron mass, the electron and positron self-energy effects may result in flatter and smaller enhancement of the electron-positron momentum distribution. Thus, the many-body effects mentioned above, among other reasons like e.g. influence of lattice potential on electron and positron wave functions, can be responsible for decreasing of the discontinuity on the Fermi momentum and a greater smearing of the Fermi surface seen in several angular correlation of positron annihilation radiation experiments.
- Źródło:
-
Acta Physica Polonica A; 2014, 125, 3; 706-709
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki