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                     Phys. Rev. B 15, 2726–2730 (1977)

                         [Issue 5 – 1 March 1977 ]

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Lattice dynamics of face-centered-cubic Co0.92Fe0.08

     S. M. Shapiro*
     Brookhaven National Laboratory, Upton, New York 11973

     S. C. Moss§
     University of Houston, Houston, Texas 77004

Received 27 October 1976

The room-temperature lattice dynamics of a crystal of Co0.92 Fe0.08 were
studied with a view to understanding the fcc-hcp transition which occurs in
pure Co at ~415°C. Because the martensitic transformation lies well below
77°K for this alloy, no anomalous neutron scattering was observed. We did,
however, measure a complete set of phonon dispersion curves and obtained a
set of Born-von Kármán force constants from which the usual thermodynamic
data have been derived. As the masses of Fe and Co are so similar, these
results should represent the lattice dynamics for fcc cobalt.

©1977 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v15/p2726
DOI: 10.1103/PhysRevB.15.2726
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* Work performed under the auspices of the U. S. Energy Research and
Development Administration.
§ Summer Visitor at Brookhaven. Supported in part by a grant from U. S.
Energy Research and Development Administration.
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References

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