Magnetic effects in transverse elastic constants of bcc Fe(Si)

We report measurements of the transverse elastic constants C′ = (C11 - C12)/2 and C44 of Fe(Si) single crystals from room temperature to T/TC ≌ 1.2 obtained from ultrasonic velocities determined by a pulse superposition method. Results are interpreted assuming that the elastic constants are the sum...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1996-05, Vol.157-158, p.378-380
Main Authors: Alves, J.Maia, Vallêra, A.M.
Format: Article
Language:English
Subjects:
Elastic constants
Magnetoelastic effects
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Summary:We report measurements of the transverse elastic constants C′ = (C11 - C12)/2 and C44 of Fe(Si) single crystals from room temperature to T/TC ≌ 1.2 obtained from ultrasonic velocities determined by a pulse superposition method. Results are interpreted assuming that the elastic constants are the sum of an intrinsic magnetic contribution, proportional to the near-neighbour magnetic correlation function, and a ‘non-magnetic’ contribution (including indirect magnetostrictive contributions), approximated by a function of the lattice parameter only.
ISSN:0304-8853
DOI:10.1016/0304-8853(95)01275-3