Inelastic Neutron Scattering in Sendust Alloy in 8-295 K Temperature Range

• Authors: K. Świderska , J. Jankowska-Kisielińska , L. Dobrzyński
• Languages of publication: EN

Abstracts

EN

The effects concerning magnetic and nuclear excitations in a single crystal of Sendust alloy (73.5 at.% Fe, 9.5 at.% Al, 17 at.% Si) are discussed. The excitations have been investigated by means of elastic and inelastic neutron scattering with the use of triple axis and small angle spectrometer. A few potential causes of spin wave damping in Sendust, like interactions of excitations or small-size precipitations of different compositions or directions of magnetization were disproved. It is suggested that one- and two-phonon scattering can explain observed strong increase of incoherent inelastic scattering with temperature.

Keywords

EN

61.05.F-; 75.30.Fv; 75.40.-s; 75.50.Lk

Discipline

• 75.30.Fv: Spin-density waves
• 75.50.Lk: Spin glasses and other random magnets
• 75.40.-s: Critical-point effects, specific heats, short-range order(for equilibrium properties near critical points, see 64.60.F-; for dynamical critical phenomena, see 64.60.Ht)
• 61.05.F-: Neutron diffraction and scattering

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 2
• Pages: 400-404

Dates

published

2012-08

Contributors

author

K. Świderska

• National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland

author

J. Jankowska-Kisielińska

• National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland

author

L. Dobrzyński

• National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
• Faculty of Mathematic and Natural Sciences, Cardinal Stefan Wyszyński University in Warsaw, K. Wóycickiego 1/3, 01-938 Warsaw, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.122.400