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Titolo:
THE EFFECT OF ADDITION OF RU TO FE ON THE ELECTRONIC-STRUCTURE AND MAGNETIC-PROPERTIES
Autore:
KOBAYASHI M; ANDO N; KAI TS; TAKANO N; SHIIKI K;
Indirizzi:
KEIO UNIV,FAC SCI & TECHNOL,DEPT INSTRUMENTAT ENGN,3-14-1 HIYOSHI YOKOHAMA KANAGAWA 223 JAPAN KANAZAWA INST TECHNOL,DEPT MECH SYST ENGN NONOICHI ISHIKAWA 921 JAPAN
Titolo Testata:
Journal of physics. Condensed matter
fascicolo: 49, volume: 7, anno: 1995,
pagine: 9607 - 9614
SICI:
0953-8984(1995)7:49<9607:TEOAOR>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRESSURE CALCULATIONS; TRANSITION-METALS; TOTAL-ENERGY; ALLOYS; IMPURITIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
M. Kobayashi et al., "THE EFFECT OF ADDITION OF RU TO FE ON THE ELECTRONIC-STRUCTURE AND MAGNETIC-PROPERTIES", Journal of physics. Condensed matter, 7(49), 1995, pp. 9607-9614

Abstract

Band structure calculations based on the Korringa-Kohn-Rostoker coherent-potential approximation method are used to study the electronic structure and magnetic properties of BCC FeRu alloys within a Ru concentration of 20 at.%, although it is experimentally known that FeRu alloys include the FCC and HCP structures beyond a 5 at.% Ru concentration. The results show that the ruthenium is ferromagnetic in alpha-Fe witha moment of about 0.5 mu(B) and that the ruthenium addition to alpha-Fe enhances the magnetic moment at Fe sites by about 0.02 mu(B)/Ru at.% because of the magnetovolume effect and large spin splitting by Ru addition. The density of states calculated in the paramagnetic state shows that the strong d-d hybridization between Fe and Ru causes the spin splitting of Ru. The BCC structure is important in the process of Rubecoming ferromagnetic. We have clarified the reason why the average magnetic moment of the FeRu BCC alloy scarcely decreases with the Ru addition.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/21 alle ore 03:19:17