September 2011

Conference Paper

Neutron spectroscopy of magnesium dihydride

By:
Kolesnikov, Alexander I; Antonov, Vladimir; Efimchenko, V.; Granroth, Garrett E; Klyamkin, S.; Levchenko, A.; Sakharov, M.; Ren, Y.
Journal Name:
Journal of Alloys and Compounds
Page Number:
S599-S603
Volume:
509S
Issue Number:
N/A
Publication Date:
September 2011
Conference Name:
International Symposium on Metal-Hydrogen Systems (MH-2010), Moscow, Russia, July 19-23, 2010.
Conference Location:
Moscow, Russia
View DOI Listing:
https://doi.org/10.1016/j.jallcom.2010.10.156

Abstract

Inelastic neutron scattering spectra of α-MgH2 powder have been measured at T = 7 K with an energy resolution better than 1.5% using the time-of-flight direct geometry spectrometer SEQUOIA. Based on these spectra, the density g(E) of phonon states in α-MgH2 has been experimentally constructed for the fist time. Comparing the available experimental data on the heat capacity of α-MgH2 with those calculated using the obtained g(E) spectrum confirmed the good accuracy of its determination.

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