PL EN


Preferences help
enabled [disable] Abstract
Number of results
1997 | 91 | 1 | 135-150
Article title

Spin Density in Real and Momentum Space in Multi-Atom Alloys by KKR-CPA Method

Authors
Content
Title variants
Languages of publication
EN
Abstracts
EN
The application of the spin-polarized version of multiple scattering theory for obtaining electron charge and spin densities in both real and momentum spaces of concentrated, multi-atom disordered alloys is presented. This method is based on the Korringa-Kohn-Rostoker (KKR) band structure approach and coherent potential approximation (CPA) method. The effective one-electron potential is constructed within local spin density approximation. The magnetic neutron form factors are in real space of our main interest. With the recent developments of new synchrotron photon sources, the Compton profile becomes the most interesting target in momentum space. In the most of examples, spin momentum density and its specific structure due to Fermi surface will be shown. To get accurate enough description in momentum space and quantity like Compton profile, the determination of the Fermi surface must be done with high precision. In this context we show how to apply generalized Lloyd formula for accurate determination of the Fermi level. Also we show how to use efficiently complex energy integration method for the computation of matrix elements, G(r,r) or G(p,p), of the KKR-CPA Green function. Results for the iron-silicon ferromagnetic binary alloys and half-metallic ferromagnetic Heusler alloys are presented.
Keywords
EN
Publisher

Year
Volume
91
Issue
1
Pages
135-150
Physical description
Dates
published
1997-01
Contributors
author
  • Faculty of Physics and Nuclear Techniques, Academy of Mining and Metallurgy, Al. Mickiewicza 30, 30-073 Kraków, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv91z111kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.