Magnetic decoupling in sputtered Fe/Si superlattices and multilayers

Eric E. Fullerton; J. E. Mattson; Seong Rae Lee; C. H. Sowers; Y. Y. Huang; G. Felcher; S. D. Bader; F. T. Parker

doi:10.1063/1.352640

Magnetic decoupling in sputtered Fe/Si superlattices and multilayers

Eric E. Fullerton, J. E. Mattson, Seong Rae Lee, C. H. Sowers, Y. Y. Huang, G. Felcher, S. D. Bader, F. T. Parker

Research output: Contribution to journal › Article

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Abstract

Sputtered Fe/Si superlattices were grown to study the magnetic coupling between ferromagnetic Fe layers (30 Å thick) for Si spacer-layer thicknesses (t_Si) between 10 and 40 Å. The material is ferromagnetical for t_Si≤13 Å and antiferromagnetically coupled for 13 Å≤t_Si≤17 Å. For t_Si≥17 Å the Fe layers are uncoupled. X-ray analysis indicates that the system is well layered, but that the crystal structure remains coherent only for t _Si≤17 Å. These results, along with our Mössbauer investigation, strongly suggest that the Si layer is crystalline for t _Si≤17 Å, and is silicide in nature. For thicker spacers, Si becomes amorphous. We propose a model of the layering that is consistent with the known properties of Fe silicide.

Original language	English
Pages (from-to)	6335-6337
Number of pages	3
Journal	Journal of Applied Physics
Volume	73
Issue number	10
DOIs	https://doi.org/10.1063/1.352640
Publication status	Published - 1993 Dec 1
Externally published	Yes

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ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Cite this

Fullerton, E. E., Mattson, J. E., Lee, S. R., Sowers, C. H., Huang, Y. Y., Felcher, G., Bader, S. D., & Parker, F. T. (1993). Magnetic decoupling in sputtered Fe/Si superlattices and multilayers. Journal of Applied Physics, 73(10), 6335-6337. https://doi.org/10.1063/1.352640

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title = "Magnetic decoupling in sputtered Fe/Si superlattices and multilayers",

abstract = "Sputtered Fe/Si superlattices were grown to study the magnetic coupling between ferromagnetic Fe layers (30 {\AA} thick) for Si spacer-layer thicknesses (tSi) between 10 and 40 {\AA}. The material is ferromagnetical for tSi≤13 {\AA} and antiferromagnetically coupled for 13 {\AA}≤tSi≤17 {\AA}. For tSi≥17 {\AA} the Fe layers are uncoupled. X-ray analysis indicates that the system is well layered, but that the crystal structure remains coherent only for t Si≤17 {\AA}. These results, along with our M{\"o}ssbauer investigation, strongly suggest that the Si layer is crystalline for t Si≤17 {\AA}, and is silicide in nature. For thicker spacers, Si becomes amorphous. We propose a model of the layering that is consistent with the known properties of Fe silicide.",

author = "Fullerton, {Eric E.} and Mattson, {J. E.} and Lee, {Seong Rae} and Sowers, {C. H.} and Huang, {Y. Y.} and G. Felcher and Bader, {S. D.} and Parker, {F. T.}",

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T1 - Magnetic decoupling in sputtered Fe/Si superlattices and multilayers

AU - Fullerton, Eric E.

AU - Mattson, J. E.

AU - Lee, Seong Rae

AU - Sowers, C. H.

AU - Huang, Y. Y.

AU - Felcher, G.

AU - Bader, S. D.

AU - Parker, F. T.

PY - 1993/12/1

Y1 - 1993/12/1

N2 - Sputtered Fe/Si superlattices were grown to study the magnetic coupling between ferromagnetic Fe layers (30 Å thick) for Si spacer-layer thicknesses (tSi) between 10 and 40 Å. The material is ferromagnetical for tSi≤13 Å and antiferromagnetically coupled for 13 Å≤tSi≤17 Å. For tSi≥17 Å the Fe layers are uncoupled. X-ray analysis indicates that the system is well layered, but that the crystal structure remains coherent only for t Si≤17 Å. These results, along with our Mössbauer investigation, strongly suggest that the Si layer is crystalline for t Si≤17 Å, and is silicide in nature. For thicker spacers, Si becomes amorphous. We propose a model of the layering that is consistent with the known properties of Fe silicide.

AB - Sputtered Fe/Si superlattices were grown to study the magnetic coupling between ferromagnetic Fe layers (30 Å thick) for Si spacer-layer thicknesses (tSi) between 10 and 40 Å. The material is ferromagnetical for tSi≤13 Å and antiferromagnetically coupled for 13 Å≤tSi≤17 Å. For tSi≥17 Å the Fe layers are uncoupled. X-ray analysis indicates that the system is well layered, but that the crystal structure remains coherent only for t Si≤17 Å. These results, along with our Mössbauer investigation, strongly suggest that the Si layer is crystalline for t Si≤17 Å, and is silicide in nature. For thicker spacers, Si becomes amorphous. We propose a model of the layering that is consistent with the known properties of Fe silicide.

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10.1063/1.352640