Magnetic phase transition and anisotropy of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates

Shiratsuchi, Yu; Endo, Yasushi; Yamamoto, Masahiko; Li, Dongqi; Bader, S. D.

doi:https://doi.org/10.1063/1.1667432

Magnetic phase transition and anisotropy of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates

Shiratsuchi, Yu; Endo, Yasushi; Yamamoto, Masahiko et al.

Journal of Applied Physics, 2004, 95(11), 6897-6899

Number of Access:657（2025-08-14 04:33 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89987

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Title	Magnetic phase transition and anisotropy of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates
Creator	NRID 1000070379121 1000070379121 ORCID 0000-0002-8938-4869 0000-0002-8938-4869 researchmap permalink read0090304 read0090304 Scopus Author ID 6602197167 6602197167 CreatorName Shiratsuchi, Yu
	NRID 1000050335379 1000050335379 CreatorName Endo, Yasushi
	NRID 1000030029160 1000030029160 CreatorName Yamamoto, Masahiko
	CreatorName Li, Dongqi
	CreatorName Bader, S. D.
Description	Yu Shiratsuchi, Yasushi Endo, and Masahiko Yamamoto, Dongqi Li and S. D. Bader, Journal of Applied Physics 95, 6897 (2004); https://doi.org/10.1063/1.1667432.
Abstract	We investigated the magnetic properties of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates at various growth temperatures. We report the evolution of the magnetism with Fe thickness tFe, growth temperature, and the effect of the inclination of the substrate orientation on the magnetic anisotropy. The films are superparamagnetic (tFe≈5 monolayer, ML), ferromagnetic (tFe>15 ML), or coexistent (tFe≈10 ML). The effect of inclination of the substrate is small in the superparamagnetic region and substantial in the ferromagnetic region. Fe thin films grown on the inclined substrate have a uniaxial magnetic anisotropy with the magnetic easy axis parallel to the step edge. This uniaxial magnetic anisotropy might be derived from the effective demagnetizing field due to the magnetic charge distribution at the corrugated surface. The strength of the uniaxial magnetic anisotropy decreases as the growth temperature increases. The dependence of the uniaxial magnetic anisotropy on growth temperature is caused by the change of growth mechanism, from smooth to rough with an increasing of growth temperature.
Publisher	American Institute of Physics
Source Title	Journal of Applied Physics
Volume (Issue)	95(11)
Page	6897-6899
Date of Issued	2004-05-25
Language	English
Handle URL	https://hdl.handle.net/11094/89987
PISSN	00218979
NCID	AA00693547
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1063/1.1667432
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 Yu Shiratsuchi, Yasushi Endo, and Masahiko Yamamoto, Dongqi Li and S. D. Bader, Journal of Applied Physics 95, 6897 (2004) and may be found at https://doi.org/10.1063/1.1667432.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	conference paper
Local Type	Conference Paper
DCMI Type	Text
DCTERMS.bibliographicCitation	Journal of Applied Physics. 2004, 95(11), p. 6897-6899
DC.title	Magnetic phase transition and anisotropy of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates
DC.creator	Shiratsuchi, Yu
	Endo, Yasushi
	Yamamoto, Masahiko
	Li, Dongqi
	Bader, S. D.
DC.publisher	American Institute of Physics
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2004-05-25
DC.identifier	https://doi.org/10.1063/1.1667432
DC.description	Yu Shiratsuchi, Yasushi Endo, and Masahiko Yamamoto, Dongqi Li and S. D. Bader, Journal of Applied Physics 95, 6897 (2004); https://doi.org/10.1063/1.1667432.
DCTERMS.abstract	We investigated the magnetic properties of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates at various growth temperatures. We report the evolution of the magnetism with Fe thickness tFe, growth temperature, and the effect of the inclination of the substrate orientation on the magnetic anisotropy. The films are superparamagnetic (tFe≈5 monolayer, ML), ferromagnetic (tFe>15 ML), or coexistent (tFe≈10 ML). The effect of inclination of the substrate is small in the superparamagnetic region and substantial in the ferromagnetic region. Fe thin films grown on the inclined substrate have a uniaxial magnetic anisotropy with the magnetic easy axis parallel to the step edge. This uniaxial magnetic anisotropy might be derived from the effective demagnetizing field due to the magnetic charge distribution at the corrugated surface. The strength of the uniaxial magnetic anisotropy decreases as the growth temperature increases. The dependence of the uniaxial magnetic anisotropy on growth temperature is caused by the change of growth mechanism, from smooth to rough with an increasing of growth temperature.
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 Yu Shiratsuchi, Yasushi Endo, and Masahiko Yamamoto, Dongqi Li and S. D. Bader, Journal of Applied Physics 95, 6897 (2004) and may be found at https://doi.org/10.1063/1.1667432.
DC.format	89987
citation_title	Magnetic phase transition and anisotropy of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates
citation_author	Shiratsuchi, Yu
	Endo, Yasushi
	Yamamoto, Masahiko
	Li, Dongqi
	Bader, S. D.
citation_publisher	American Institute of Physics
citation_language	English
citation_date	2004-05-25
citation_journal_title	Journal of Applied Physics
citation_volume	95
citation_issue	11
citation_firstpage	6897
citation_lastpage	6899
citation_doi	https://doi.org/10.1063/1.1667432
citation_public_url	https://hdl.handle.net/11094/89987

Magnetic phase transition and anisotropy of ultrathin Fe films grown on inclined Al₂O₃(0001) substrates

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