Structural and magnetic properties of Co2FeAl 0.5Si0.5 full-Heusler alloy thin films deposited on Si substrates by molecular beam epitaxy

Tatsuya Saito; Ken Kano; Nobuki Tezuka; Satoshi Sugimoto

doi:10.2320/jinstmet.75.141

Structural and magnetic properties of Co₂FeAl _0.5Si_0.5 full-Heusler alloy thin films deposited on Si substrates by molecular beam epitaxy

Tatsuya Saito, Ken Kano, Nobuki Tezuka, Satoshi Sugimoto

ENG - Materials Science

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

Abstract

We investigated the structural and magnetic properties of Co ₂FeAl_0.5Si_0.5 (CFAS) full-Heusler alloy thin films deposited on Si/SiO₂/(001)-oriented MgO strucutre by molecular beam epitaxy. The MgO layer deposited at 300°C grew with an enough (001)-orientation to obtain high spin polarization on Si/SiO₂ substrate. The CFAS thin films on Si/SiO₂/(001)-oriented MgO structure showed only (220) peaks in XRD measurements. However, those films also showed high magnetization, same as the magnetization of L2₁-ordered CFAS on MgO substrates. Therefore, it is considered that the CFAS thin films on Si/SiO₂/ (001)-oriented MgO structure have the high ordered structure.

Original language	English
Pages (from-to)	141-145
Number of pages	5
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	75
Issue number	3
DOIs	https://doi.org/10.2320/jinstmet.75.141
Publication status	Published - 2011 Mar

Keywords

(001)-oriented mgo
Full-Heusler alloy
Silikon

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.2320/jinstmet.75.141

Cite this

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title = "Structural and magnetic properties of Co2FeAl 0.5Si0.5 full-Heusler alloy thin films deposited on Si substrates by molecular beam epitaxy",

abstract = "We investigated the structural and magnetic properties of Co 2FeAl0.5Si0.5 (CFAS) full-Heusler alloy thin films deposited on Si/SiO2/(001)-oriented MgO strucutre by molecular beam epitaxy. The MgO layer deposited at 300°C grew with an enough (001)-orientation to obtain high spin polarization on Si/SiO2 substrate. The CFAS thin films on Si/SiO2/(001)-oriented MgO structure showed only (220) peaks in XRD measurements. However, those films also showed high magnetization, same as the magnetization of L21-ordered CFAS on MgO substrates. Therefore, it is considered that the CFAS thin films on Si/SiO2/ (001)-oriented MgO structure have the high ordered structure.",

keywords = "(001)-oriented mgo, Full-Heusler alloy, Silikon",

author = "Tatsuya Saito and Ken Kano and Nobuki Tezuka and Satoshi Sugimoto",

year = "2011",

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journal = "Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals",

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publisher = "Japan Institute of Metals (JIM)",

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T1 - Structural and magnetic properties of Co2FeAl 0.5Si0.5 full-Heusler alloy thin films deposited on Si substrates by molecular beam epitaxy

AU - Saito, Tatsuya

AU - Kano, Ken

AU - Tezuka, Nobuki

AU - Sugimoto, Satoshi

PY - 2011/3

Y1 - 2011/3

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AB - We investigated the structural and magnetic properties of Co 2FeAl0.5Si0.5 (CFAS) full-Heusler alloy thin films deposited on Si/SiO2/(001)-oriented MgO strucutre by molecular beam epitaxy. The MgO layer deposited at 300°C grew with an enough (001)-orientation to obtain high spin polarization on Si/SiO2 substrate. The CFAS thin films on Si/SiO2/(001)-oriented MgO structure showed only (220) peaks in XRD measurements. However, those films also showed high magnetization, same as the magnetization of L21-ordered CFAS on MgO substrates. Therefore, it is considered that the CFAS thin films on Si/SiO2/ (001)-oriented MgO structure have the high ordered structure.

KW - (001)-oriented mgo

KW - Full-Heusler alloy

KW - Silikon

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