Proximity effects on the magnetic behavior of Cr6-Cr9 atomic clusters embedded in Fe Bulk
Fuente:
Redalyc
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
2007
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1876458943662784512 |
|---|---|
| author | E. M Sosa-Hernández |
| author_facet | E. M Sosa-Hernández |
| contents | Proximity effects on the magnetic behavior of Cr6-Cr9 atomic clusters embedded in Fe Bulk E. M Sosa-Hernández P. G. Alvarado-Leyva Física, Astronomía y Matemáticas Magnetic order Magnetic frustrations Local magnetic moments The magnetic behavior of clusters Cr6-Cr9 in bulk Fe is determined by using an electronic Hamiltonian which includes s, pand d electrons. The spin density distribution is calculated self-consistenly in the unrestricted Hartree-Fockapproximation. The local magnetic moments μ (i) are obtained at various atoms i of Cr clusters and of the surroundingmatrix. The local magnetic moments at Fe atoms and the magnetic moments of Cr atoms present an antiparallel coupling.The magnetic behavior of Cr clusters depends on two factors, the size of the cluster and the proximity between them. ForCr6 the magnetic moments at Cr atoms are parallel whereas for Cr9 the μCr(i) are antiparallel. The magnetic order in thematrix is not broken by the presence of the Cr atoms, but the local magnetic moments of Fe atoms in the interface clustermatrixare reduced respect to Fe bulk magnetization. [v.g. μFe(5)=2μB in Cr6; μFe(3)=1.8μB in Cr9]. 2007 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94220102 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.1 Vol.20 |
| format | Artículo científico |
| id | redalyc_94220102 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. |
| spellingShingle | Proximity effects on the magnetic behavior of Cr6-Cr9 atomic clusters embedded in Fe Bulk E. M Sosa-Hernández Física, Astronomía y Matemáticas Magnetic order Magnetic frustrations Local magnetic moments Proximity effects on the magnetic behavior of Cr6-Cr9 atomic clusters embedded in Fe Bulk E. M Sosa-Hernández P. G. Alvarado-Leyva Física, Astronomía y Matemáticas Magnetic order Magnetic frustrations Local magnetic moments The magnetic behavior of clusters Cr6-Cr9 in bulk Fe is determined by using an electronic Hamiltonian which includes s, pand d electrons. The spin density distribution is calculated self-consistenly in the unrestricted Hartree-Fockapproximation. The local magnetic moments μ (i) are obtained at various atoms i of Cr clusters and of the surroundingmatrix. The local magnetic moments at Fe atoms and the magnetic moments of Cr atoms present an antiparallel coupling.The magnetic behavior of Cr clusters depends on two factors, the size of the cluster and the proximity between them. ForCr6 the magnetic moments at Cr atoms are parallel whereas for Cr9 the μCr(i) are antiparallel. The magnetic order in thematrix is not broken by the presence of the Cr atoms, but the local magnetic moments of Fe atoms in the interface clustermatrixare reduced respect to Fe bulk magnetization. [v.g. μFe(5)=2μB in Cr6; μFe(3)=1.8μB in Cr9]. 2007 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94220102 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.1 Vol.20 |
| title | Proximity effects on the magnetic behavior of Cr6-Cr9 atomic clusters embedded in Fe Bulk |
| topic | Física, Astronomía y Matemáticas Magnetic order Magnetic frustrations Local magnetic moments |
| url | https://www.redalyc.org/articulo.oa?id=94220102 |