Magnetic Hyperfine Fields of Nanoperm Alloys

• Authors: M. Miglierini , J. Kohout , A. Lančok , K. Šafářová
• Languages of publication: EN

Abstracts

EN

Magnetic hyperfine fields of Fe_{90}Zr_7B_3 Nanoperm nanocrystalline alloy are characterized by ^{57}Fe Mössbauer spectrometry and ^{57}Fe NMR as well as by magnetic force microscopy. ^{57}Fe NMR enables to distinguish a broad signal of iron atoms located in a residual amorphous matrix from a narrow one which belongs to Fe in nanograins. The former coincides with the distribution of hyperfine fields obtained from ^{57}Fe Mössbauer spectroscopy. In addition, it is possible to make a distinction between NMR signals of the Fe nanograins located in magnetic domains from that of the nanograins positioned in domain walls. This is confirmed by magnetic force microscopy where appearance of maze-domains is observed.

Keywords

EN

75.50.Tt; 75.75.-c; 76.80.+y; 76.60.-k; 68.37.Rt

Discipline

• 76.60.-k: Nuclear magnetic resonance and relaxation(see also 33.25.+k Nuclear resonance and relaxation in atomic and molecular physics and 82.56.-b Nuclear magnetic resonance in physical chemistry and chemical physics; for structure determination using magnetic resonance techniques, see 61.05.Qr; for biophysical applications, see 87.80.Lg; for NMR in superconducting materials, see 74.25.nj)
• 68.37.Rt: Magnetic force microscopy (MFM)
• 75.75.-c: Magnetic properties of nanostructures
• 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.Tt: Fine-particle systems; nanocrystalline materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 5-6
• Pages: 1263-1265

Dates

published

2012-05

Contributors

author

M. Miglierini

• Slovak University of Technology, Ilkovičova 3, 812 19 Bratislava, Slovakia
• Regional Centre of Advance Technologies and Materials, Palacky University, Šlechtitelů 11, 771 46 Olomouc, Czech Republic

author

J. Kohout

• Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague, Czech Republic

author

A. Lančok

• Institute of Inorganic Chemistry of the AS CR, v. v. i., 250 68 Husinec-Řež 1001, Czech Republic

author

K. Šafářová

• Regional Centre of Advance Technologies and Materials, Palacky University, Šlechtitelů 11, 771 46 Olomouc, Czech Republic

References

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Identifiers

DOI

10.12693/APhysPolA.121.1263