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Mass Effects on Optical Phonons in L1_2-Ordered Pt_3^(57)Fe and Pd_3^(57)Fe

Yue, A. F. and Papandrew, A. and Bogdanoff, P. D. and Halevy, I. and Lin, J. G.-W. and Fultz, B. and Sturhahn, W. and Alp, E. E. and Toellner, T. S. (2002) Mass Effects on Optical Phonons in L1_2-Ordered Pt_3^(57)Fe and Pd_3^(57)Fe. Hyperfine Interactions, 141/142 (1/4). pp. 249-253. ISSN 0304-3843. doi:10.1023/a:1021295112714.

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Inelastic nuclear resonant scattering spectra of ^(57)Fe atoms were measured on Pt_3^(57)Fe and Pd_3^(57)Fe with the L1_2 crystal structure, and with the same crystallographic sites for ^(57)Fe atoms. Phonon partial density of states curves for ^(57)Fe were obtained from these spectra. In comparison to the non-dispersive Einstein-like optical modes in Pt_3^(57)Fe, the optical modes in Pd_3^(57)Fe are broader. This difference can be understood in terms of the difference in mass of Pd and Pt.

Item Type:Article
Related URLs:
URLURL TypeDescription ReadCube access
Fultz, B.0000-0002-6364-8782
Sturhahn, W.0000-0002-9606-4740
Alp, E. E.0000-0002-4803-8863
Additional Information:© Kluwer Academic Publishers 2002. The work at Caltech was supported by the U.S. National Science Foundation under contract DMR-9816617, and the work at Argonne was supported by the U.S. Department of Energy under contract W-31-109-ENG-38.
Funding AgencyGrant Number
Department of Energy (DOE)W-31-109-ENG-38
Subject Keywords:inelastic scattering, lattice dynamics, ordered alloys, Pt_3Fe, Pd_3Fe
Issue or Number:1/4
Record Number:CaltechAUTHORS:20190829-131534125
Persistent URL:
Official Citation:Yue, A.F., Papandrew, A., Bogdanoff, P.D. et al. Hyperfine Interactions (2002) 141: 249.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98352
Deposited By: George Porter
Deposited On:30 Aug 2019 14:44
Last Modified:16 Nov 2021 17:38

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