Inelastic Neutron Scattering in Sendust Alloy in 8-295 K Temperature Range
K. Świderskaa, J. Jankowska-Kisielińskaa and L. Dobrzyńskia, b
aNational Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
bFaculty of Mathematic and Natural Sciences, Cardinal Stefan Wyszyński University in Warsaw, K. Wóycickiego 1/3, 01-938 Warsaw, Poland
Full Text PDF
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.
DOI: 10.12693/APhysPolA.122.400
PACS numbers: 61.05.F-, 75.30.Fv, 75.40.-s, 75.50.Lk