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STATISTICS OF INTERATOMIC Ni–Ni BONDS IN Ni-BASED TERNARY SOLID SOLUTIONS WITH NON-MAGNETIC ELEMENTS AND THEIR MAGNETIC BEHAVIOR

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: I. COSMA; E. CULEA; R. FECHETE; S. NICOARA

Editorial: Modern Physics Letters B, , Vol. 23, No. 9 , p.1199-1206, 2009.

Rezumat:

The drop of ferromagnetic moment in the ternary solid solutions Ni1-x-yCuxDy, (D = Zn, Si, Au, Al) is analyzed in terms of the statistical model of the environment-dependent moments. This probabilistic model shows that the disappearing of one Ni atom ferromagnetic moment can be assigned to the replacement of at least four Ni–Ni bindings, out of twelve, in pure nickel. This paper aims at discussing all these features that, from the point of view of macroscopic equilibrium states, are related to the distribution of local bonds, provided by the peripheral electrons of the substitute atoms dissolved in the Ni matrix.

Cuvinte cheie: Statistica legaturilor Ni-Ni; aliaje pe baza de Ni; momente magnetice // Statistics of Ni–Ni bonds; Ni-based alloys; magnetic moments