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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/55319
Record Status
Checked
Record Id
55319
Title
Experimental evidence of librational vibrations determining the stability of calcium borohydride
Contributors
A Borgschulte
,
R Gremaud
,
A Zuettel
,
P Martelli
,
A Remhof
,
AJ Ramirez-Cuesta (STFC Rutherford Appleton Lab.)
,
K Refson (STFC Rutherford Appleton Lab.)
,
EG Bardaji
,
W Lohstroh
,
M Fichtner
,
H Hagemann
,
M Ernst
Abstract
The high energy of hydrogen vibrations in solids is the origin of their strong impact on thermodynamic properties. The peculiar structure of complex hydrides amplifies this impact. We shed light on the vibrational properties of three allotropes of Ca(BH4)2 using density-functional theory calculations, infrared spectroscopy, and inelastic neutron scattering. We show that the vibrational properties of Ca(BH4)2 depend on the specific phase and are hitherto the origin of their differences in stability.
Organisation
ISIS
,
CSE
,
ISIS-TOSCA
,
CSE-CMSG
,
STFC
Keywords
RALSpace 2011-2012
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev B
83, no. 2 (2011): 024102.
doi:10.1103/PhysRevB.83.024102
2011
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