Journal Article

PreJuSER-22312

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Spin-wave excitations in half-metallic materials

Long, N. H.FZJ* ; Ogura, M. ; Akai, H.

2012
APS College Park, Md.

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/10850  doi:10.1103/PhysRevB.85.224437

Abstract: Finite-temperature magnetic properties of half-metallic materials are investigated on the basis of the first-principles Korringa-Kohn-Rostoker Green's function method. Influences of spin-wave excitations on the electronic structure are examined in the framework of the coherent potential approximation. The calculations show that the half-metallicity is easily destroyed due to an appearence of low-energy electron excited states in the minority-spin band gap at finite temperature. On the other hand, calculated dc conductivity shows that the 100% spin-polarized conduction occurring in half-metallic materials hardly deteriorates even in such a temperature.

Keyword(s): J

Note: This work was supported by the Next Generation Super Computing Project, Nanoscience Program, MEXT, Japan, and by MEXT KAKENHI No. 17064008.

---

Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Quanten-Theorie der Materialien (IAS-1)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2012

---

Database coverage:
; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---