Spintronics Materials with High-Spin Polarization

Y. K. Takahashi*, K. Hono

*この研究の対応する著者

研究成果: Chapter

抄録

This chapter reviews the exploration of quaternary ferromagnetic (FM) Heusler alloys with high-spin polarization and their applications to magnetoresistive devices. Of the most successful spintronics devices are tunneling magnetoresistance (TMR) devices for read sensor applications in hard disk drives (HDDs). Due to the invention of giant magnetoresistance (GMR) in ferromagnetic/nonmagnetic multilayers by Baibich and Grünberg and the subsequent invention of spin valves, the areal density of HDDs has increased dramatically due to improvements to the sensitivity of GMR sensors. The spin polarization of materials has to be promptly measured to explore highly spin polarized materials. TMR devices are the most successful spintronics device applications that have thus far been industrially implemented. The chapter highlights that some of the newly developed quaternary Heusler alloys were found to be promising FM materials in spintronics devices such as current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) and lateral spin valve (LSV).

本文言語English
ホスト出版物のタイトルSpintronics for Next Generation Innovative Devices
出版社wiley
ページ21-42
ページ数22
ISBN(電子版)9781118751886
ISBN(印刷版)9781118751886
DOI
出版ステータスPublished - 2016 1月 8
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 材料科学(全般)

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