001 textured polycrystalline current-perpendicular-to-plane pseudo spin-valves using Co2Fe(Ga0.5Ge0.5) Heusler alloy

Ye Du, B. S.D.Ch S. Varaprasad, Y. K. Takahashi, T. Furubayashi, K. Hono

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The orientation dependence of current-perpendicular-to-plane giant-magnetoresistance (CPP-GMR) was investigated by fabricating 001 textured polycrystalline pseudo spin valves (PSVs) with Co2Fe(Ga 0.5Ge0.5) (CFGG) Heusler alloy ferromagnetic layers and a Ag spacer. The PSV with 10 nm CFGG annealed at 400°C exhibited the resistance-change area product (ΔRA) of 5.8 mΩ (MR ratio of 16%), the largest value reported for polycrystalline CPP-(P)SVs. The 001 textured CFGG PSV outperforms the 011 textured CFGG PSV possibly due to the reduced lattice mismatch or improved band matching at the CFGG/Ag interface.

Original languageEnglish
Article number202401
JournalApplied Physics Letters
Volume103
Issue number20
DOIs
Publication statusPublished - 2013 Nov 11
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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