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

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume75
Issue number3
DOIs
Publication statusPublished - 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

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