Structural and Magnetic Ordering in Fe-Ga Thin Films Examined by Mössbauer Spectrometry

• Authors: T. Szumiata , K. Brzózka , M. Gawroński , B. Górka , A. Javed , N. Morley , M. Gibbs
• Languages of publication: EN

Abstracts

EN

The detailed analysis of atomic and magnetic structure has been performed by Mössbauer spectroscopy for polycrystalline Fe_{80}Ga_{20} films of different thickness ranging from 20 nm to 200 nm. The films were deposited on Si(100) substrate using dual sputtering and evaporation method. Obtained CEMS spectra have been fitted with several Gaussian distributions of hyperfine magnetic field. The results point to the domination of BCC disordered A2 phase and the absence of DO_{3} and L1_{2} phases in the films. Both hyperfine parameters and lattice constant reveal anomaly for 40 nm thick sample - presumably due to the change of the internal stress. Spin texture evolves from in-plane to out-of-the-plane configuration with increasing thickness.

Keywords

EN

75.50.Bb; 75.70.Ak; 76.80.+y

Discipline

• 75.70.Ak: Magnetic properties of monolayers and thin films
• 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)
• 75.50.Bb: Fe and its alloys

• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 1
• Pages: 21-23

Dates

published

2011-01

Contributors

author

T. Szumiata

• Department of Physics, Technical University of Radom, Krasickiego 54, 26-600 Radom, Poland

author

K. Brzózka

• Department of Physics, Technical University of Radom, Krasickiego 54, 26-600 Radom, Poland

author

M. Gawroński

• Department of Physics, Technical University of Radom, Krasickiego 54, 26-600 Radom, Poland

author

B. Górka

• Department of Physics, Technical University of Radom, Krasickiego 54, 26-600 Radom, Poland

author

A. Javed

• Department of Engineering Materials, University of Sheffield, Sheffield, S1 3JD, UK

author

N. Morley

• Department of Engineering Materials, University of Sheffield, Sheffield, S1 3JD, UK

author

M. Gibbs

• Department of Engineering Materials, University of Sheffield, Sheffield, S1 3JD, UK

References

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Identifiers

DOI

10.12693/APhysPolA.119.21