Calculated magnetic properties of an Fe1-xNix monolayer on Cu(001)

被引：13

作者：

Smirnova, EA

Abrikosov, IA

Johansson, B

Vekilov, YK

Baranov, AN

Stepanyuk, VS

Hergert, W

Dederichs, PH

机构：

[1] Moscow Steel & Alloys Inst, Dept Theoret Phys, Moscow 117419, Russia

[2] Uppsala Univ, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden

[3] Moscow MV Lomonosov State Univ, Dept Solid State Phys, Moscow 119899, Russia

[4] Univ Halle Wittenberg, Fachbereich Phys, D-06099 Halle, Germany

[5] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.59.14417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a detailed investigation of the magnetic properties of a single monolayer of Fe-Ni alloy film on Cu(001) substrate by means of the spin-polarized linear muffin-tin orbitals Green's-function technique and the Korringa-Kohn-Rostoker Green's function method. The coherent-potential approximation formalism is used in both approaches. Our study shows that the FeNi film remains in a high-spin state for the whole concentration interval, which agrees with experimental data. We observe substantial deviations between the film and the bulk magnetization in Fe-rich, as well as in Ni-rich alloys. We consider the influence of main important factors on the behavior of the magnetic moment of the film: (i) the nonequilibrium lattice parameter of the alloy, (ii) the interaction between the epitaxial monolayer of FeNi with substrate, (iii) reduced dimensionality of monolayers. The possibility of a direct extrapolation of results of surface properties towards properties of bulk alloys is discussed. [S0163-1829(99)14821-5].

引用

页码：14417 / 14423

页数：7

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