Epitaxial growth of Fe/Ag single crystal superlattices and their magnetic properties

Yu Gu; Fei Zeng; Fang Lv; Yu li Gu; Pei yong Yang; Feng Pan

doi:10.1016/S1674-4799(09)60012-1

Epitaxial growth of Fe/Ag single crystal superlattices and their magnetic properties

Yu Gu, Fei Zeng, Fang Lv, Yu li Gu, Pei yong Yang, Feng Pan^*

^*Corresponding author for this work

Tsinghua University

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Single crystal Fe/Ag(001) superlattices with various periodicities were fabricated using ultrahigh vacuum evaporation deposition. It was found that single crystal bcc Fe layers and single crystal fcc Ag layers can epitaxially grow on a single crystal Ag buffer layer alternately, which was deposited on NaCl single crystal chips by ion beam assisted deposition. The magnetic measurements of the superlattices reveal an oscillation coupling between ferromagnetism and antiferromagnetism as a function of the Ag layer thickness. The oscillation period, which is 1 nm (5 Ag layers), is in good agreement with the calculated values when the Ag thickness is greater than 1.5 nm. While the thickness of the Ag spacer layer decreases to 1 nm, the oscillation coupling varies from calculations, which can be attributed to the intermixing of the interlayers according to the annealing results.

Original language	English
Pages (from-to)	71-76
Number of pages	6
Journal	International Journal of Minerals, Metallurgy and Materials
Volume	16
Issue number	1
DOIs	https://doi.org/10.1016/S1674-4799(09)60012-1
Publication status	Published - Feb 2009
Externally published	Yes

Keywords

Fe/Ag superlattices
annealing
magnetization
oscillating periodicity

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10.1016/S1674-4799(09)60012-1

Cite this

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title = "Epitaxial growth of Fe/Ag single crystal superlattices and their magnetic properties",

abstract = "Single crystal Fe/Ag(001) superlattices with various periodicities were fabricated using ultrahigh vacuum evaporation deposition. It was found that single crystal bcc Fe layers and single crystal fcc Ag layers can epitaxially grow on a single crystal Ag buffer layer alternately, which was deposited on NaCl single crystal chips by ion beam assisted deposition. The magnetic measurements of the superlattices reveal an oscillation coupling between ferromagnetism and antiferromagnetism as a function of the Ag layer thickness. The oscillation period, which is 1 nm (5 Ag layers), is in good agreement with the calculated values when the Ag thickness is greater than 1.5 nm. While the thickness of the Ag spacer layer decreases to 1 nm, the oscillation coupling varies from calculations, which can be attributed to the intermixing of the interlayers according to the annealing results.",

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T1 - Epitaxial growth of Fe/Ag single crystal superlattices and their magnetic properties

AU - Gu, Yu

AU - Zeng, Fei

AU - Lv, Fang

AU - Gu, Yu li

AU - Yang, Pei yong

AU - Pan, Feng

PY - 2009/2

Y1 - 2009/2

N2 - Single crystal Fe/Ag(001) superlattices with various periodicities were fabricated using ultrahigh vacuum evaporation deposition. It was found that single crystal bcc Fe layers and single crystal fcc Ag layers can epitaxially grow on a single crystal Ag buffer layer alternately, which was deposited on NaCl single crystal chips by ion beam assisted deposition. The magnetic measurements of the superlattices reveal an oscillation coupling between ferromagnetism and antiferromagnetism as a function of the Ag layer thickness. The oscillation period, which is 1 nm (5 Ag layers), is in good agreement with the calculated values when the Ag thickness is greater than 1.5 nm. While the thickness of the Ag spacer layer decreases to 1 nm, the oscillation coupling varies from calculations, which can be attributed to the intermixing of the interlayers according to the annealing results.

AB - Single crystal Fe/Ag(001) superlattices with various periodicities were fabricated using ultrahigh vacuum evaporation deposition. It was found that single crystal bcc Fe layers and single crystal fcc Ag layers can epitaxially grow on a single crystal Ag buffer layer alternately, which was deposited on NaCl single crystal chips by ion beam assisted deposition. The magnetic measurements of the superlattices reveal an oscillation coupling between ferromagnetism and antiferromagnetism as a function of the Ag layer thickness. The oscillation period, which is 1 nm (5 Ag layers), is in good agreement with the calculated values when the Ag thickness is greater than 1.5 nm. While the thickness of the Ag spacer layer decreases to 1 nm, the oscillation coupling varies from calculations, which can be attributed to the intermixing of the interlayers according to the annealing results.

KW - Fe/Ag superlattices

KW - annealing

KW - magnetization

KW - oscillating periodicity

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Epitaxial growth of Fe/Ag single crystal superlattices and their magnetic properties

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Keywords

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