Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances

Ogi, H.; Fujii, M.; Nakamura, N.; Yasui, T.; Hirao, M.

doi:https://doi.org/10.1103/PhysRevLett.98.195503

Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances

Ogi, H.; Fujii, M.; Nakamura, N. et al.

Physical Review Letters, 2007, 98(19), 195503-1-195503-4

Number of Access:740（2025-11-25 04:20 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84182

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Title	Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances
Creator	NRID 1000090252626 1000090252626 researchmap permalink read0042771 read0042771 Scopus Author ID 35563683500 35563683500 ORCID 0000-0002-9602-5194 0000-0002-9602-5194 CreatorName Ogi, H.
	CreatorName Fujii, M.
	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 1000070314408 1000070314408 CreatorName Yasui, T.
	NRID 1000080112027 1000080112027 CreatorName Hirao, M.
Description	Ogi H., Fujii M., Nakamura N., et al. "Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances", Physical Review Letters, 98(19), 195503, 2007. https://doi.org/10.1103/PhysRevLett.98.195503.
Abstract	Resonances of coherent acoustic phonons were excited and detected by femtosecond light pulses for determining the normal elastic constant of ultrathin platinum films. The elastic constant increases with the decrease of the film thickness, exceeds the bulk value at the thickness near 5 nm, and significantly increases at low temperatures. It shows a correlation with the normal lattice distance. Thus, this Letter provides evidence of the stiffness enhancement in ultrathin films caused by lattice anharmonicity. © 2007 The American Physical Society.
Publisher	American Physical Society
Source Title	Physical Review Letters
Volume (Issue)	98(19)
Page	195503-1-195503-4
Date of Issued	2007-05-09
Language	English
Handle URL	https://hdl.handle.net/11094/84182
PISSN	00319007
eISSN	10797114
NCID	AA11734748
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1103/PhysRevLett.98.195503
Access Rights	open access
CopyRight	Copyright 2007 by the American Physical Society
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Physical Review Letters. 2007, 98(19), p. 195503-1-195503-4
DC.title	Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances
DC.creator	Ogi, H.
	Fujii, M.
	Nakamura, N.
	Yasui, T.
	Hirao, M.
DC.publisher	American Physical Society
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2007-05-09
DC.identifier	https://doi.org/10.1103/PhysRevLett.98.195503
DC.description	Ogi H., Fujii M., Nakamura N., et al. "Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances", Physical Review Letters, 98(19), 195503, 2007. https://doi.org/10.1103/PhysRevLett.98.195503.
DCTERMS.abstract	Resonances of coherent acoustic phonons were excited and detected by femtosecond light pulses for determining the normal elastic constant of ultrathin platinum films. The elastic constant increases with the decrease of the film thickness, exceeds the bulk value at the thickness near 5 nm, and significantly increases at low temperatures. It shows a correlation with the normal lattice distance. Thus, this Letter provides evidence of the stiffness enhancement in ultrathin films caused by lattice anharmonicity. © 2007 The American Physical Society.
DC.rights	Copyright 2007 by the American Physical Society
DC.format	84182
citation_title	Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances
citation_author	Ogi, H.
	Fujii, M.
	Nakamura, N.
	Yasui, T.
	Hirao, M.
citation_publisher	American Physical Society
citation_language	English
citation_date	2007-05-09
citation_journal_title	Physical Review Letters
citation_volume	98
citation_issue	19
citation_firstpage	195503-1
citation_lastpage	195503-4
citation_doi	https://doi.org/10.1103/PhysRevLett.98.195503
citation_public_url	https://hdl.handle.net/11094/84182

Stiffened ultrathin Pt films confirmed by acoustic-phonon resonances

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