Influence of Cobalt Substitution on Hyperfine Interactions in (Fe_{1-x}Co_x)_{76}Mo_8Cu_1B_{15} Alloys

• Authors: T. Kaňčuch , M. Miglierini , A. Lancok , P. Švec , E. Illeková
• Languages of publication: EN

Abstracts

EN

The effect of cobalt substitution on structure, magnetic behaviour, magnetic arrangement, and hyperfine interactions in (Fe_{1-x}Co_x)_{76}Mo_8Cu_1B_{15} (x = 0, 0.1, 0.2, 0.25, 0.5) is studied by the Mössbauer spectrometry for both as-quenched and annealed alloys. Partial substitution of Fe by Co resulted in an enhancement of the average value of hyperfine magnetic field distributions as a function of x probably due to higher magnetic moment of Co. After annealing, a two-phase nanocrystalline structure composed of amorphous matrix and bcc-FeCo nanocrystallites was observed. Mössbauer spectra were fitted with up to four six-line patterns of narrow lines assigned to different number of Co nearest neighbours inside a bcc-FeCo lattice.

Keywords

EN

61.46.-w; 75.75.+a; 76.80.+y

Discipline

• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)
• 61.46.-w: Structure of nanoscale materials(for thermal properties of nanocrystals and nanotubes, see 65.80.-g; for mechanical properties of nanoscale systems, see 62.25.-g; for electronic transport in nanoscale materials, see 73.63.-b; see also 62.23.-c Structural classes of nanoscale systems; 64.70.Nd Structural transitions in nanoscale materials; for magnetic properties of nanostructures, see 75.75.-c)

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 63-66

Dates

published

2008-01

received

2007-07-09

Contributors

author

T. Kaňčuch

• Department of Nuclear Physics and Technology, Slovak University of Technology, IlkoviČova 3, 812 19 Bratislava, Slovakia
• Inst. Inorganic Chemistry AS CR, v. v. i., 250 68 Řež, Czech Republic

author

M. Miglierini

• Department of Nuclear Physics and Technology, Slovak University of Technology, IlkoviČova 3, 812 19 Bratislava, Slovakia
• Nanomaterials Research Centre, 771 46 Olomouc, Czech Republic

author

A. Lancok

• Inst. Inorganic Chemistry AS CR, v. v. i. , 250 68 Řež, Czech Republic

author

P. Švec

• Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia

author

E. Illeková

• Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia

References

• 1. M. Miglierini, J. Degmova, T. Kanuch, J.-M. Greneche, Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors, Kluwer Academic, 2005, p. 421
• 2. C.F. Conde, A. Conde, D. Janickovic, P. Svec, J. Magn. Magn. Mater. 304, e739 (2006)
• 3. M. E. McHenry, M.A. Willard, D.E. Laughlin, Prog. Mater. Sci. 44, 291 (1999)
• 4. J. S. Blazquez, C.F. Conde, A. Conde, J.M. Greneche, J. Alloy Comp. 397, 173 (2005)
• 5. J. S. Blazquez, A. Conde, J.M. Greneche, Appl. Phys. Lett. 81, 1612 (2006)
• 6. B. DeMayo, D.W. Forester, S. Spooner, J. Appl. Phys. 41, 1319 (2007)

Identifiers

DOI

10.12693/APhysPolA.113.63