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Localized Diffusional Motion of Hydrogen and Deuterium in Crystalline Pd9Si2

Published online by Cambridge University Press:  10 February 2011

C. Karmonik ,
Q. Huang ,
T.J. Udovic ,
J.J. Rush ,
Y. Andersson  and
T.B. Flanagan
C. Karmonik
Affiliation:
NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD 20899, USA
Q. Huang
Affiliation:
NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD 20899, USA Department of Materials and Nuclear Engineering, University of Maryland, College Park MD 20742, USA
T.J. Udovic
Affiliation:
NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD 20899, USA
J.J. Rush
Affiliation:
NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD 20899, USA
Y. Andersson
Affiliation:
Institute of Chemistry, Department of Inorganic Chemistry, University of Uppsala, S-75121 Uppsala, Sweden
T.B. Flanagan
Affiliation:
Departmentof Chemistry, University of Vermont, Burlington VT 05405, USA
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Abstract

Using quasielastic neutron scattering, we have studied the dynamics of hydrogen and deuterium in crystalline Pd9Si2. For both isotopes, a localized motion was found which takes place between two energetically different sites. For the hydrogenated sample, the spatial and temporal parameters characterizing this motion are derived. The results are in agreement with neutron powder diffraction and neutron vibrational spectroscopic measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 527: Symposium Z – Diffusion Mechanisms in Crystalline Materials , 1998 , 75
Copyright
Copyright © Materials Research Society 1998

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References

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