Axial orientation of molecular-beam-epitaxy-grown Fe3 SiGe hybrid structures and its degradation

Yoshihito Maeda; Takafumi Jonishi; Kazumasa Narumi; Yu Ichiro Ando; Koji Ueda; Mamoru Kumano; Taizoh Sadoh; Masanobu Miyao

doi:10.1063/1.2801705

Axial orientation of molecular-beam-epitaxy-grown Fe3 SiGe hybrid structures and its degradation

Yoshihito Maeda, Takafumi Jonishi, Kazumasa Narumi, Yu Ichiro Ando, Koji Ueda, Mamoru Kumano, Taizoh Sadoh, Masanobu Miyao

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Abstract

The axial orientation of molecular-beam-epitaxy (MBE)-grown Fe3 Si (111) Ge (111) hybrid structures was investigated by Rutherford backscattering spectroscopy. We confirmed that during MBE above 300 °C, the interdiffusion of Fe and Ge atoms results in a composition change and the epitaxial growth of FeGe in Fe3 Si. Low-temperature (<200 °C) MBE can realize fully ordered D O3 - Fe3 Si with highly axial orientation [minimum yield (min) =2.2%]. Postannealing above 400 °C results in a composition change and the degradation of axial orientation in the off-stoichiometric Fe3 Si. The significance of stoichiometry with regard to thermal stability and the interfacial quality of Fe3 Si (111) Ge (111) hybrid structures was also discussed.

Original language	English
Article number	171910
Journal	Applied Physics Letters
Volume	91
Issue number	17
DOIs	https://doi.org/10.1063/1.2801705
Publication status	Published - 2007

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2801705

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@article{b2a9ffac7c954bfc8c3359a6f9c4dfca,

title = "Axial orientation of molecular-beam-epitaxy-grown Fe3 SiGe hybrid structures and its degradation",

abstract = "The axial orientation of molecular-beam-epitaxy (MBE)-grown Fe3 Si (111) Ge (111) hybrid structures was investigated by Rutherford backscattering spectroscopy. We confirmed that during MBE above 300 °C, the interdiffusion of Fe and Ge atoms results in a composition change and the epitaxial growth of FeGe in Fe3 Si. Low-temperature (<200 °C) MBE can realize fully ordered D O3 - Fe3 Si with highly axial orientation [minimum yield (min) =2.2%]. Postannealing above 400 °C results in a composition change and the degradation of axial orientation in the off-stoichiometric Fe3 Si. The significance of stoichiometry with regard to thermal stability and the interfacial quality of Fe3 Si (111) Ge (111) hybrid structures was also discussed.",

author = "Yoshihito Maeda and Takafumi Jonishi and Kazumasa Narumi and Ando, {Yu Ichiro} and Koji Ueda and Mamoru Kumano and Taizoh Sadoh and Masanobu Miyao",

note = "Funding Information: This study was supported by a Grant-in-Aid for Scientific Research on Priority Area No. 18063018 and the Grant No. 17360011 from the MEXT in Japan.",

year = "2007",

doi = "10.1063/1.2801705",

language = "English",

volume = "91",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

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TY - JOUR

T1 - Axial orientation of molecular-beam-epitaxy-grown Fe3 SiGe hybrid structures and its degradation

AU - Maeda, Yoshihito

AU - Jonishi, Takafumi

AU - Narumi, Kazumasa

AU - Ando, Yu Ichiro

AU - Ueda, Koji

AU - Kumano, Mamoru

AU - Sadoh, Taizoh

AU - Miyao, Masanobu

N1 - Funding Information: This study was supported by a Grant-in-Aid for Scientific Research on Priority Area No. 18063018 and the Grant No. 17360011 from the MEXT in Japan.

PY - 2007

Y1 - 2007

N2 - The axial orientation of molecular-beam-epitaxy (MBE)-grown Fe3 Si (111) Ge (111) hybrid structures was investigated by Rutherford backscattering spectroscopy. We confirmed that during MBE above 300 °C, the interdiffusion of Fe and Ge atoms results in a composition change and the epitaxial growth of FeGe in Fe3 Si. Low-temperature (<200 °C) MBE can realize fully ordered D O3 - Fe3 Si with highly axial orientation [minimum yield (min) =2.2%]. Postannealing above 400 °C results in a composition change and the degradation of axial orientation in the off-stoichiometric Fe3 Si. The significance of stoichiometry with regard to thermal stability and the interfacial quality of Fe3 Si (111) Ge (111) hybrid structures was also discussed.

AB - The axial orientation of molecular-beam-epitaxy (MBE)-grown Fe3 Si (111) Ge (111) hybrid structures was investigated by Rutherford backscattering spectroscopy. We confirmed that during MBE above 300 °C, the interdiffusion of Fe and Ge atoms results in a composition change and the epitaxial growth of FeGe in Fe3 Si. Low-temperature (<200 °C) MBE can realize fully ordered D O3 - Fe3 Si with highly axial orientation [minimum yield (min) =2.2%]. Postannealing above 400 °C results in a composition change and the degradation of axial orientation in the off-stoichiometric Fe3 Si. The significance of stoichiometry with regard to thermal stability and the interfacial quality of Fe3 Si (111) Ge (111) hybrid structures was also discussed.

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U2 - 10.1063/1.2801705

DO - 10.1063/1.2801705

M3 - Article

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SN - 0003-6951

VL - 91

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 171910

ER -

Axial orientation of molecular-beam-epitaxy-grown Fe3 SiGe hybrid structures and its degradation

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