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

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

doi:10.1016/j.jmmm.2004.11.499

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

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

ENG - Materials Science

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1150-1153
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	290-291 PART 2
DOIs	https://doi.org/10.1016/j.jmmm.2004.11.499
Publication status	Published - 2005 Apr

Keywords

CPP-GMR
Ru
Spin-dependent scattering

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2004.11.499

Cite this

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title = "CPP-GMR enhancement in spin valves using a thin Ru layer",

abstract = "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.",

keywords = "CPP-GMR, Ru, Spin-dependent scattering",

author = "N. Tezuka and S. Abe and Y. Jiang and K. Inomata",

note = "Funding Information: This work was partly supported by Industry Technology Research Grant Program in 0* from NEDO of Japan, the IT-Program of Research Revolution 2002 (RR2002), the Priority Area 1407602 from MEXT.",

year = "2005",

month = apr,

doi = "10.1016/j.jmmm.2004.11.499",

language = "English",

volume = "290-291 PART 2",

pages = "1150--1153",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

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TY - JOUR

T1 - CPP-GMR enhancement in spin valves using a thin Ru layer

AU - Tezuka, N.

AU - Abe, S.

AU - Jiang, Y.

AU - Inomata, K.

N1 - Funding Information: This work was partly supported by Industry Technology Research Grant Program in 0* from NEDO of Japan, the IT-Program of Research Revolution 2002 (RR2002), the Priority Area 1407602 from MEXT.

PY - 2005/4

Y1 - 2005/4

N2 - 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.

AB - 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.

KW - CPP-GMR

KW - Ru

KW - Spin-dependent scattering

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U2 - 10.1016/j.jmmm.2004.11.499

DO - 10.1016/j.jmmm.2004.11.499

M3 - Article

AN - SCOPUS:14944343500

VL - 290-291 PART 2

SP - 1150

EP - 1153

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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