Enhancement of current-perpendicular-to-plane giant magnetoresistance by insertion of Co50Fe50 layers at the Co 2Mn(Ga0.5Sn0.5)/Ag interface

N. Hase, T. M. Nakatani, S. Kasai, Y. K. Takahashi, K. Hono*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We have investigated the effect of the insertion of Co50Fe 50 layers at ferromagnet/spacer interfaces on magnetoresistance (MR) properties in current-perpendicular-to-plane giant MR devices using Co 2Mn(Ga0.5Sn0.5) Heusler alloy layers. The insertion of 1 nm thick Co50Fe50 layers led to a large enhancement of MR outputs with a large temperature dependence of MR. Smaller temperature dependences were observed for the insertion of Co 50Fe50 layers of thicker than 2 nm, but only with less enhancement of MR outputs.

Original languageEnglish
Article number07E112
JournalJournal of Applied Physics
Volume109
Issue number7
DOIs
Publication statusPublished - 2011 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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