Mean square displacements of hydrogen interstitial and its neighbours in the intermetallic compound Fe0.5Ti0.5

Lawrence, N and Haridasan, TM and Subramanian, CK (1987) Mean square displacements of hydrogen interstitial and its neighbours in the intermetallic compound Fe0.5Ti0.5. In: Journal of Physics and Chemistry of Solids, 48 (12). pp. 1245-1249.

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Abstract

A Green's function technique is used in the scattering matrix formalism to compute the mean square displacement of hydrogen and deuterium interstitials in the intermetallic compound Fe0.5Ti0.5 for low hydrogen/deuterium concentration. The mean square amplitudes of the metal atoms surrounding the interstitial are found to be smaller than those for the host crystal. This anomalous effect is due to the stiffening of the lattice by the dissolved hydrogen or deuterium at low concentration. This type of effect is experimentally observed in the case of NbHx at low hydrogen concentration.

Item Type:	Journal Article
Publication:	Journal of Physics and Chemistry of Solids
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Keywords:	Scattering matrix;mean square displacement;hydrogen; deuterium;anomalous effect.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	21 Oct 2010 09:57
Last Modified:	21 Oct 2010 09:57
URI:	http://eprints.iisc.ac.in/id/eprint/33361

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