ISSN:
1432-0630
Keywords:
Positron annihilation
;
Anderson model
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract The positron annihilation rate in a ferromagnetic electron system which is described by a generalized Anderson model has been studied. Because of the spin polarization ofs-type electrons, the difference in the annihilation rate between the majority and the minority spins changes its sign at the momentum corresponding to the virtuald-level. The enhancement factor due to the effective Coulomb interaction between the electrons and a positron has been calculated using the dielectric constant for a ferromagnetic electron gas derived by Kim and Schwatz.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00900526
Permalink
