Fast recovery of elastic constant in thin films studied by resonant-ultrasound spectroscopy

Nakamura, N.; Nakashima, T.; Ogi, H. et al.

Journal of Applied Physics, 2010, 107(10), 103541-1-103541-4

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Identifier to cite or link to this item: https://hdl.handle.net/11094/84227

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Title
Fast recovery of elastic constant in thin films studied by resonant-ultrasound spectroscopy
Creator
NRID
1000050452404 1000050452404
researchmap permalink
nnakamura nnakamura
Scopus Author ID
7403356186 7403356186
ORCID
0000-0002-5338-842X 0000-0002-5338-842X
CreatorName
Nakamura, N.
NRID
1000070117183 1000070117183
CreatorName
Nakashima, T.
NRID
1000090252626 1000090252626
researchmap permalink
read0042771 read0042771
Scopus Author ID
35563683500 35563683500
CreatorName
Ogi, H.
NRID
1000080112027 1000080112027
CreatorName
Hirao, M.
CreatorName
Nishiyama, M.
Description
Nakamura N., Nakashima T., Ogi H., et al. "Fast recovery of elastic constant in thin films studied by resonant-ultrasound spectroscopy", Journal of Applied Physics, 107(10), 103541 (2007) https://doi.org/10.1063/1.3407540.
Abstract
This paper reports incredibly large and rapid evolution of elastic constants in deposited copper and silver films observed by the resonant-ultrasound spectroscopy. The evolution begins just after stopping the deposition with the temperature dependent recovery rate. To explain the mechanism, we propose a model, where the elastic constants at grain boundary regions increase by 67% at least. Diffusion of atoms along the grain boundary region is a possible reason, and we confirm that the activation energy is much smaller than that for grain-boundary diffusion in bulk materials. These results are explained by drastic structure change at grain boundaries, being similar to phase transition from liquid into solid phase. © 2010, American Institute of Physics. All rights reserved.
Publisher
American Institute of Physics
Source Title
Journal of Applied Physics
Volume (Issue)
107(10)
Page
103541-1-103541-4
Date of Issued
2010-05-15
Language
English
Handle URL
https://hdl.handle.net/11094/84227
PISSN
00218979
eISSN
10897550
NCID
AA00693547
AA11868165
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/1.3407540
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Journal of Applied Physics, 107(10), 103541 (2007) and may be found at https://doi.org/10.1063/1.3407540.
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Version of Record
Category
学術雑誌論文 Journal Article