CPP-GMR enhancement in spin valves using a thin Ru layer

N. Tezuka, S. Abe, Y. Jiang, K. Inomata

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Current perpendicular to plane giant magnetoresistance (CPP-GMR) of single spin valves with two kinds free layers has been investigated. One is a single ferromagnetic layer (Conventional structure) and the other is a ferromagnetic layer with thin Ru cap layer (Ru cap structure). Both structure had increasing resistance and resistance changes with decreasing element size. The CPP-GMR ratio for a Ru cap structure was enhanced from 0.70 to 4.3% at room temperature. We think the MR enhancement is caused by the spin dependent scattering due to strong reflection of majority spins at the Co90Fe10/Ru interface.

Original languageEnglish
Pages (from-to)1150-1153
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume290-291 PART 2
Publication statusPublished - 2005 Apr


  • Ru
  • Spin-dependent scattering


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