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Phys. Rev. Lett. 76, 3220–3223 (1996)

[Issue 17 – 22 April 1996 ]

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Time Domain Study of ⁵⁷Fe Diffusion using Nuclear Forward Scattering of Synchrotron Radiation

B. Sepiol¹, A. Meyer^2,3, G. Vogl¹, R. Rüffer³, A. I. Chumakov³, and A. Q. R. Baron³

¹Institut für Festkörperphysik der Universität Wien, Strudlhofgasse 4, A-1090 Wien, Austria

²Physik-Departement, Technische Universität München, D-85747 Garching, Germany

³European Synchrotron Radiation Facility, F-38043 Grenoble, France

Diffusion of ⁵⁷Fe in the intermetallic alloy Fe₃Si was investigated using nuclear forward scattering of synchrotron radiation parallel to the [113] crystal direction with the aim to demonstrate the feasibility of a diffusion study in a crystalline solid. The jumps between different sites on a lattice, corresponding to a finite residence time on one and the same lattice site, cause a loss of coherence of scattered synchrotron radiation. This gives rise to a decay of the forward scattered intensity which is faster than under static conditions. From the time dependence of the decay diffusivities of iron are derived.

©1996 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v76/p3220
DOI: 10.1103/PhysRevLett.76.3220
PACS: 76.80.+y, 66.30.Fq

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References

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