Local Chemical Environments and the Phonon Partial Densities of States of {sup 57}Fe in {sup 57}Fe{sub 3}Al

Journal Article · Wed Apr 01 04:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.3304· OSTI ID:610678

Fultz, B; Stephens, T A ^[1]; Sturhahn, W; Toellner, T S; Alp, E E ^[2]

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1. Division of Engineering and Applied Science, 138--78, California Institute of Technology, Pasadena, California 91125 (United States)
2. Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Inelastic nuclear resonant scattering spectra were measured on alloys of Fe{sub 3}Al that were chemically disordered, partially ordered, and D0{sub 3} ordered. The features in the phonon partial density of states of {sup 57}Fe were found to change systematically with chemical short-range order in the alloy. Changes in the phonon partial density of states were modeled successfully by assigning vibrational spectra to {sup 57}Fe atoms in different first-nearest-neighbor chemical environments. {copyright} {ital 1998} {ital The American Physical Society}

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 610678
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALUMINIUM ALLOYS
BINARY ALLOY SYSTEMS
IRON 57
IRON ALLOYS
MOESSBAUER EFFECT
PHONONS