Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 70: Issue 2
Low-temperature heat capacity of TMS monolayers adsorbed on graphite and MgO+
Authors:
N Sakisato Osaka University Department of Chemistry and Research Center for Molecular Thermodynamics, Graduate School of Science Toyonaka, Osaka 560-0043 Japan

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A Inaba Osaka University Department of Chemistry and Research Center for Molecular Thermodynamics, Graduate School of Science Toyonaka, Osaka 560-0043 Japan

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T Matsuo Osaka University Department of Chemistry and Research Center for Molecular Thermodynamics, Graduate School of Science Toyonaka, Osaka 560-0043 Japan

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Pages:
353–360
Online Publication Date:
01 Nov 2004
Publication Date:
01 Sep 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1021651818857
Keywords:
heat capacity; MgO; graphite; monolayer; tetramethylsilane
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Abstract  

The heat capacity obtained below 30 K for the tetramethylsilane monolayers, which are adsorbed either on graphite or on the (100) surface of MgO, is analyzed to investigate the vibrational properties. The 2-D Debye temperatures are approximately 60% of the Debye temperature of the bulk solid (γ -phase), reflecting the dimensionality of lattice vibrations. The contributions from the vibrations perpendicular to the surface as well as the librational motions are determined by fitting the experimental heat capacities. All the results are consistent with those obtained from the incoherent inelastic neutron scattering and the molecular dynamics simulation.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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