Elastic stiffness of L1₀ FePt thin film studied by picosecond ultrasonics

Nakamura, N.; Uranishi, A.; Wakita, M.; Ogi, H.; Hirao, M.; Nishiyama, M.

doi:https://doi.org/10.1063/1.3562031

Elastic stiffness of L1₀ FePt thin film studied by picosecond ultrasonics

Nakamura, N.; Uranishi, A.; Wakita, M. et al.

Applied Physics Letters, 2011, 98(10), 101911-1-101911-3

Number of Access:457（2025-09-12 06:22 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84212

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Title	Elastic stiffness of L1₀ FePt thin film studied by picosecond ultrasonics
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.
	CreatorName Uranishi, A.
	CreatorName Wakita, M.
	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., Uranishi A., Wakita M., et al. "Elastic stiffness of L 10 FePt thin film studied by picosecond ultrasonics", Applied Physics Letters, 98(10), 101911 (2011) https://doi.org/10.1063/1.3562031.
Abstract	The elastic stiffness of epitaxial and polycrystalline L 10 FePt films is studied by picosecond ultrasonics coupled with x-ray reflectivity analysis, and we find that C33 of L 10 FePt is 309 GPa. The morphology of FePt films shows dependence on the film thickness; as the film thickness increases the mazelike structure changes to a continuous film. The elastic stiffness correlates with the morphology change, and it increases as the film thickness increases. When the film thickness exceeds 40 nm, the elastic stiffness becomes independent of the film thickness, and we define the saturated value as C33 of L 10 FePt. © 2011 American Institute of Physics.
Publisher	American Institute of Physics
Source Title	Applied Physics Letters
Volume (Issue)	98(10)
Page	101911-1-101911-3
Date of Issued	2011-03-07
Language	English
Handle URL	https://hdl.handle.net/11094/84212
PISSN	00036951
eISSN	10773118
NCID	AA00543431
NCID	AA11868096
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1063/1.3562031
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 Applied Physics Letters, 98(10), 101911 (2011) and may be found at https://doi.org/10.1063/1.3562031.
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	Applied Physics Letters. 2011, 98(10), p. 101911-1-101911-3
DC.title	Elastic stiffness of L1₀ FePt thin film studied by picosecond ultrasonics
DC.creator	Nakamura, N.
	Uranishi, A.
	Wakita, M.
	Ogi, H.
	Hirao, M.
	Nishiyama, M.
DC.publisher	American Institute of Physics
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2011-03-07
DC.identifier	https://doi.org/10.1063/1.3562031
DC.description	Nakamura N., Uranishi A., Wakita M., et al. "Elastic stiffness of L 10 FePt thin film studied by picosecond ultrasonics", Applied Physics Letters, 98(10), 101911 (2011) https://doi.org/10.1063/1.3562031.
DCTERMS.abstract	The elastic stiffness of epitaxial and polycrystalline L 10 FePt films is studied by picosecond ultrasonics coupled with x-ray reflectivity analysis, and we find that C33 of L 10 FePt is 309 GPa. The morphology of FePt films shows dependence on the film thickness; as the film thickness increases the mazelike structure changes to a continuous film. The elastic stiffness correlates with the morphology change, and it increases as the film thickness increases. When the film thickness exceeds 40 nm, the elastic stiffness becomes independent of the film thickness, and we define the saturated value as C33 of L 10 FePt. © 2011 American Institute of Physics.
DC.rights	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 Applied Physics Letters, 98(10), 101911 (2011) and may be found at https://doi.org/10.1063/1.3562031.
DC.format	84212
citation_title	Elastic stiffness of L1₀ FePt thin film studied by picosecond ultrasonics
citation_author	Nakamura, N.
	Uranishi, A.
	Wakita, M.
	Ogi, H.
	Hirao, M.
	Nishiyama, M.
citation_publisher	American Institute of Physics
citation_language	English
citation_date	2011-03-07
citation_journal_title	Applied Physics Letters
citation_volume	98
citation_issue	10
citation_firstpage	101911-1
citation_lastpage	101911-3
citation_doi	https://doi.org/10.1063/1.3562031
citation_public_url	https://hdl.handle.net/11094/84212

Elastic stiffness of L1₀ FePt thin film studied by picosecond ultrasonics

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