Depth-Selective Study of Surface Crystallization in NANOPERM-Type Alloys

• Authors: M. Miglierini , T. Hatala , M. Bujdoš
• Languages of publication: EN

Abstracts

EN

Evolution of structure and magnetic order is studied in the ^{57}Fe_{81}Mo_{8}Cu_{1}B_{10} alloy by conversion electron and conversion X-ray ^{57}Fe Mössbauer spectrometry. Surface features exhibit differences at both sides of ribbon-shaped samples with respect to the screening depth. In the as-quenched state, traces of magnetite (in addition to bcc-Fe) are revealed only at the wheel side of the ribbon to the depth of about 200 nm. It is present also after annealing up to 510 °C, then it disappears. In deeper regions (down to 1 μm), magnetite is less abundant. At the air side, only bcc-Fe is detected, though the progress of crystallization is more pronounced here than at the wheel side. Vibration properties of the bulk of amorphous and nanocrystalline samples are obtained from experiments of nuclear inelastic scattering of synchrotron radiation using partial densities of phonon states.

Keywords

EN

76.80.+y; 75.70.i; 71.55.Jv; 65.80.-g; 63.22.-m; 63.50.-x

Discipline

• 63.50.-x: Vibrational states in disordered systems
• 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)
• 63.22.-m: Phonons or vibrational states in low-dimensional structures and nanoscale materials
• 65.80.-g: Thermal properties of small particles, nanocrystals, nanotubes, and other related systems
• 71.55.Jv: Disordered structures; amorphous and glassy solids

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 56-57

Dates

published

2014-07

Contributors

author

M. Miglierini

• Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia
• Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic

author

T. Hatala

• Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia

author

M. Bujdoš

• Institute of Laboratory Research on Geomaterials, Faculty of Natural Sciences, Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia

References

• [1] M. Miglierini, J.-M. Grenèche, J. Phys.: Condens. Matter. 15, 5637 (2003), doi: 10.1088/0953-8984/15/32/323
• [2] S. Stankov, B. Sepiol, T. Kaňuch, D. Scherjau, R. Würschum, M. Miglierini, J. Phys.: Condens. Matter. 17, 3183 (2005), doi: 10.1088/0953-8984/17/21/013
• [3] E. Illeková, D. Janičkovič, M. Miglierini, I. Škorvánek, P. Švec, J. Magn. Magn. Mat. 304, e636 (2006), doi: 10.1016/j.jmmm.2006.02.212
• [4] S. Stankov, M. Miglierini, A.I. Chumakov, I. Sergueev, Y.Z. Yue, B. Sepiol, P. Svec, L. Hu, R. Rüffer, Phys. Rev. B 82, 144301 (2010), doi: 10.1103/PhysRevB.82.144301
• [5] W. Sturhahn, Hyperfine Int. 125, 149 (2000), doi: 10.1023/A:1012681503686

Identifiers

DOI

10.12693/APhysPolA.126.56