Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer

Yao Jung Chen; Chi Ching Chang; Huei Ying Ho; Jyh Shen Tsay

doi:10.1016/j.tsf.2011.03.065

Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer

Yao Jung Chen, Chi Ching Chang, Huei Ying Ho, Jyh Shen Tsay^*

^*此作品的通信作者

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

9 引文斯高帕斯（Scopus）

摘要

For Fe/Pt(111) grown at 180 K, the easy axis of magnetization changes from out-of-plane to in-plane while the surface structure changes from fcc(111) to bcc(110). The Curie temperature for 1 ML Fe/Pt(111) is close to room temperature. After insertion of submonolayer Ag, no significant change for the Curie temperature is observed. By thermally annealing Ag/Pt(111) at 550 K to form a Ag-Pt surface alloy, we demonstrate that the Curie temperature of the deposited Fe films is elevated to be higher than room temperature. For an ultrathin Fe/Ag/Fe/Pt(111) sandwich system, the strong interaction between the two Fe layers is superior due to the effect of the double Fe/Ag interfaces. This causes that the easy axis of the magnetization switches back to the in-plane direction during the deposition of Fe overlayer on the surface of a Ag/Fe/Pt(111) film.

原文	英語
頁（從 - 到）	8343-8346
頁數	4
期刊	Thin Solid Films
卷	519
發行號	23
DOIs	https://doi.org/10.1016/j.tsf.2011.03.065
出版狀態	已發佈 - 2011 9月 30

ASJC Scopus subject areas

電子、光磁材料
表面和介面
表面、塗料和薄膜
金屬和合金
材料化學

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10.1016/j.tsf.2011.03.065

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title = "Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer",

abstract = "For Fe/Pt(111) grown at 180 K, the easy axis of magnetization changes from out-of-plane to in-plane while the surface structure changes from fcc(111) to bcc(110). The Curie temperature for 1 ML Fe/Pt(111) is close to room temperature. After insertion of submonolayer Ag, no significant change for the Curie temperature is observed. By thermally annealing Ag/Pt(111) at 550 K to form a Ag-Pt surface alloy, we demonstrate that the Curie temperature of the deposited Fe films is elevated to be higher than room temperature. For an ultrathin Fe/Ag/Fe/Pt(111) sandwich system, the strong interaction between the two Fe layers is superior due to the effect of the double Fe/Ag interfaces. This causes that the easy axis of the magnetization switches back to the in-plane direction during the deposition of Fe overlayer on the surface of a Ag/Fe/Pt(111) film.",

keywords = "Ag, Fe, Magneto-optic Kerr effect, Spin-reorientation transition, Surface alloy",

author = "Chen, {Yao Jung} and Chang, {Chi Ching} and Ho, {Huei Ying} and Tsay, {Jyh Shen}",

note = "Funding Information: This work was supported by the National Science Council of ROC under the grant numbers NSC 99-2112-M-152-001-MY3 and NSC 97-2112-M-003 -010-MY3 .",

year = "2011",

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day = "30",

doi = "10.1016/j.tsf.2011.03.065",

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T1 - Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer

AU - Chen, Yao Jung

AU - Chang, Chi Ching

AU - Ho, Huei Ying

AU - Tsay, Jyh Shen

N1 - Funding Information: This work was supported by the National Science Council of ROC under the grant numbers NSC 99-2112-M-152-001-MY3 and NSC 97-2112-M-003 -010-MY3 .

PY - 2011/9/30

Y1 - 2011/9/30

N2 - For Fe/Pt(111) grown at 180 K, the easy axis of magnetization changes from out-of-plane to in-plane while the surface structure changes from fcc(111) to bcc(110). The Curie temperature for 1 ML Fe/Pt(111) is close to room temperature. After insertion of submonolayer Ag, no significant change for the Curie temperature is observed. By thermally annealing Ag/Pt(111) at 550 K to form a Ag-Pt surface alloy, we demonstrate that the Curie temperature of the deposited Fe films is elevated to be higher than room temperature. For an ultrathin Fe/Ag/Fe/Pt(111) sandwich system, the strong interaction between the two Fe layers is superior due to the effect of the double Fe/Ag interfaces. This causes that the easy axis of the magnetization switches back to the in-plane direction during the deposition of Fe overlayer on the surface of a Ag/Fe/Pt(111) film.

AB - For Fe/Pt(111) grown at 180 K, the easy axis of magnetization changes from out-of-plane to in-plane while the surface structure changes from fcc(111) to bcc(110). The Curie temperature for 1 ML Fe/Pt(111) is close to room temperature. After insertion of submonolayer Ag, no significant change for the Curie temperature is observed. By thermally annealing Ag/Pt(111) at 550 K to form a Ag-Pt surface alloy, we demonstrate that the Curie temperature of the deposited Fe films is elevated to be higher than room temperature. For an ultrathin Fe/Ag/Fe/Pt(111) sandwich system, the strong interaction between the two Fe layers is superior due to the effect of the double Fe/Ag interfaces. This causes that the easy axis of the magnetization switches back to the in-plane direction during the deposition of Fe overlayer on the surface of a Ag/Fe/Pt(111) film.

KW - Ag

KW - Fe

KW - Magneto-optic Kerr effect

KW - Spin-reorientation transition

KW - Surface alloy

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Effects of interfacial structure on the magnetic properties of ultrathin Fe/Pt(111) films with Ag buffer layer

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