The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers

X. Li; K. W. Lin; H. T. Liang; H. F. Hsu; N. G. Galkin; Y. Wroczynskyj; J. Van Lierop; P. W.T. Pong

doi:10.1016/j.nimb.2015.07.087

The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers

X. Li, K. W. Lin, H. T. Liang, H. F. Hsu, N. G. Galkin, Y. Wroczynskyj, J. Van Lierop, P. W.T. Pong

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

11 Scopus citations

Abstract

Si/Fe and SiO₂/Fe thin-film heterostructures are commonly seen in magnetic multilayer devices, whose magnetic properties are strongly influenced by intermixing at the interfaces. In this paper, Si-oxide/Fe bilayers were formed by depositing Si on Fe with in situ O₂/Ar ion-beam bombardment during the Si deposition. The surface oxidation conditions were altered by applying different O₂/Ar ratios (0-41%) in the ion-beam. The surface and cross-sectional morphologies, and the crystalline structures were characterized by transmission electron microscopy. The formation of Fe-O, Fe-Si and Si-O bonds at the interface of the O₂/Ar ion-beam bombarded Si-oxide/Fe bilayers was evidenced by X-ray photoemission spectra. FeO, Fe₃O₄ and Fe₂O₃ at the interface resulted in a marked increase in the magnetic coercivity at low temperatures, as characterized by magnetometry.

Original language	English (US)
Pages (from-to)	196-201
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	365
DOIs	https://doi.org/10.1016/j.nimb.2015.07.087
State	Published - Dec 15 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

Keywords

Interface
Ion-beam bombardment
Si-oxide/Fe bilayers
Thin film magnetism

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10.1016/j.nimb.2015.07.087

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Li, X., Lin, K. W., Liang, H. T., Hsu, H. F., Galkin, N. G., Wroczynskyj, Y., Van Lierop, J., & Pong, P. W. T. (2015). The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 365, 196-201. https://doi.org/10.1016/j.nimb.2015.07.087

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title = "The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers",

abstract = "Si/Fe and SiO2/Fe thin-film heterostructures are commonly seen in magnetic multilayer devices, whose magnetic properties are strongly influenced by intermixing at the interfaces. In this paper, Si-oxide/Fe bilayers were formed by depositing Si on Fe with in situ O2/Ar ion-beam bombardment during the Si deposition. The surface oxidation conditions were altered by applying different O2/Ar ratios (0-41%) in the ion-beam. The surface and cross-sectional morphologies, and the crystalline structures were characterized by transmission electron microscopy. The formation of Fe-O, Fe-Si and Si-O bonds at the interface of the O2/Ar ion-beam bombarded Si-oxide/Fe bilayers was evidenced by X-ray photoemission spectra. FeO, Fe3O4 and Fe2O3 at the interface resulted in a marked increase in the magnetic coercivity at low temperatures, as characterized by magnetometry.",

keywords = "Interface, Ion-beam bombardment, Si-oxide/Fe bilayers, Thin film magnetism",

author = "X. Li and Lin, {K. W.} and Liang, {H. T.} and Hsu, {H. F.} and Galkin, {N. G.} and Y. Wroczynskyj and {Van Lierop}, J. and Pong, {P. W.T.}",

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year = "2015",

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doi = "10.1016/j.nimb.2015.07.087",

language = "English (US)",

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Li, X, Lin, KW, Liang, HT, Hsu, HF, Galkin, NG, Wroczynskyj, Y, Van Lierop, J & Pong, PWT 2015, 'The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 365, pp. 196-201. https://doi.org/10.1016/j.nimb.2015.07.087

The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers. / Li, X.; Lin, K. W.; Liang, H. T. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 365, 15.12.2015, p. 196-201.

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

TY - JOUR

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AU - Li, X.

AU - Lin, K. W.

AU - Liang, H. T.

AU - Hsu, H. F.

AU - Galkin, N. G.

AU - Wroczynskyj, Y.

AU - Van Lierop, J.

AU - Pong, P. W.T.

PY - 2015/12/15

Y1 - 2015/12/15

N2 - Si/Fe and SiO2/Fe thin-film heterostructures are commonly seen in magnetic multilayer devices, whose magnetic properties are strongly influenced by intermixing at the interfaces. In this paper, Si-oxide/Fe bilayers were formed by depositing Si on Fe with in situ O2/Ar ion-beam bombardment during the Si deposition. The surface oxidation conditions were altered by applying different O2/Ar ratios (0-41%) in the ion-beam. The surface and cross-sectional morphologies, and the crystalline structures were characterized by transmission electron microscopy. The formation of Fe-O, Fe-Si and Si-O bonds at the interface of the O2/Ar ion-beam bombarded Si-oxide/Fe bilayers was evidenced by X-ray photoemission spectra. FeO, Fe3O4 and Fe2O3 at the interface resulted in a marked increase in the magnetic coercivity at low temperatures, as characterized by magnetometry.

AB - Si/Fe and SiO2/Fe thin-film heterostructures are commonly seen in magnetic multilayer devices, whose magnetic properties are strongly influenced by intermixing at the interfaces. In this paper, Si-oxide/Fe bilayers were formed by depositing Si on Fe with in situ O2/Ar ion-beam bombardment during the Si deposition. The surface oxidation conditions were altered by applying different O2/Ar ratios (0-41%) in the ion-beam. The surface and cross-sectional morphologies, and the crystalline structures were characterized by transmission electron microscopy. The formation of Fe-O, Fe-Si and Si-O bonds at the interface of the O2/Ar ion-beam bombarded Si-oxide/Fe bilayers was evidenced by X-ray photoemission spectra. FeO, Fe3O4 and Fe2O3 at the interface resulted in a marked increase in the magnetic coercivity at low temperatures, as characterized by magnetometry.

KW - Interface

KW - Ion-beam bombardment

KW - Si-oxide/Fe bilayers

KW - Thin film magnetism

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Li X, Lin KW, Liang HT, Hsu HF, Galkin NG, Wroczynskyj Y et al. The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2015 Dec 15;365:196-201. doi: 10.1016/j.nimb.2015.07.087

The effects of interfacial interactions between Fe-O and Fe-Si induced by ion-beam bombardment on the magnetic properties of Si-oxide/Fe bilayers

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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