Journal
Article title
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Abstracts
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.
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
Year
Volume
Issue
Pages
400-404
Physical description
Dates
published
2012-08
Contributors
author
- National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
author
- National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
author
- 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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- 2. G. Parzych, J. Jankowska-Kisielińska, L. Dobrzyński, Acta Phys. Pol. A 117, 578 (2010)
- 3. W. Marshall, S.W. Lovesey, Theory of Thermal Neutron Scattering, Oxford University Press, Oxford 1971, pp. 94, 269
- 4. A. Singh, L. Roth, J. Appl. Phys. 49, 1642 (1978)
- 5. G.A. Murray, Proc. Phys. Soc. 89, 87 (1966)
- 6. A. Singh, Z. Tešanović, Phys. Rev. B 39, 7284 (1989)
- 7. A. Singh, Phys. Rev. 39, 505 (1989)
- 8. K. Świderska, J. Jankowska-Kisielińska, L. Dobrzyński, 'Spin Wave Dispersion Relation and Damping in Sendust Alloy in 8 to 295 K Temperature Range', J. Phys.: Conf. Ser., to be published
- 9. X.G. Ma, J.J. Jiang, S.W. Bie, L. Miao, C.K. Zhang, Z.Y. Wang, Intermetallics 18, 2399 (2010)
- 10. J. Mayers, Nucl. Instrum. Methods Phys. Res. 221, 609 (1984)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv122n2p60kz