Spin transfer effect in spin-valve pillars for current-perpendicular-to-plane magnetoresistive heads (invited)

K. J. Lee; Y. Liu; A. Deac; M. Li; J. W. Chang; S. Liao; K. Ju; O. Redon; J. P. Nozières; B. Dieny

doi:10.1063/1.1682872

Spin transfer effect in spin-valve pillars for current-perpendicular-to-plane magnetoresistive heads (invited)

K. J. Lee, Y. Liu, A. Deac, M. Li, J. W. Chang, S. Liao, K. Ju, O. Redon, J. P. Nozières, B. Dieny

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

27 Citations (Scopus)

Abstract

The large spin transfer effects observed in spin-valve pillars developed for current perpendicular to plane (CPP) magnetoresistive heads were studied. Complex stacks including laminated free, synthetic/laminated pinned, and nano oxide layers were investigated. The magnetoresistive (MR) transfer curves were found to exhibit current dependent loop shift. Very large noise associated either to stochastic jump of the free layer magnetization or to excitations of steady precessional states was also found to exist in some particular ranges of current and field. The spin-transfer effect was shown to exhibit an asymmetry as a function of current direction.

Original language	English
Pages (from-to)	7423-7428
Number of pages	6
Journal	Journal of Applied Physics
Volume	95
Issue number	11 II
DOIs	https://doi.org/10.1063/1.1682872
Publication status	Published - 2004 Jun 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Spin transfer effect in spin-valve pillars for current-perpendicular-to-plane magnetoresistive heads (invited)",

abstract = "The large spin transfer effects observed in spin-valve pillars developed for current perpendicular to plane (CPP) magnetoresistive heads were studied. Complex stacks including laminated free, synthetic/laminated pinned, and nano oxide layers were investigated. The magnetoresistive (MR) transfer curves were found to exhibit current dependent loop shift. Very large noise associated either to stochastic jump of the free layer magnetization or to excitations of steady precessional states was also found to exist in some particular ranges of current and field. The spin-transfer effect was shown to exhibit an asymmetry as a function of current direction.",

author = "Lee, {K. J.} and Y. Liu and A. Deac and M. Li and Chang, {J. W.} and S. Liao and K. Ju and O. Redon and Nozi{\`e}res, {J. P.} and B. Dieny",

year = "2004",

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doi = "10.1063/1.1682872",

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T1 - Spin transfer effect in spin-valve pillars for current-perpendicular-to-plane magnetoresistive heads (invited)

AU - Lee, K. J.

AU - Liu, Y.

AU - Deac, A.

AU - Li, M.

AU - Chang, J. W.

AU - Liao, S.

AU - Ju, K.

AU - Redon, O.

AU - Nozières, J. P.

AU - Dieny, B.

PY - 2004/6/1

Y1 - 2004/6/1

N2 - The large spin transfer effects observed in spin-valve pillars developed for current perpendicular to plane (CPP) magnetoresistive heads were studied. Complex stacks including laminated free, synthetic/laminated pinned, and nano oxide layers were investigated. The magnetoresistive (MR) transfer curves were found to exhibit current dependent loop shift. Very large noise associated either to stochastic jump of the free layer magnetization or to excitations of steady precessional states was also found to exist in some particular ranges of current and field. The spin-transfer effect was shown to exhibit an asymmetry as a function of current direction.

AB - The large spin transfer effects observed in spin-valve pillars developed for current perpendicular to plane (CPP) magnetoresistive heads were studied. Complex stacks including laminated free, synthetic/laminated pinned, and nano oxide layers were investigated. The magnetoresistive (MR) transfer curves were found to exhibit current dependent loop shift. Very large noise associated either to stochastic jump of the free layer magnetization or to excitations of steady precessional states was also found to exist in some particular ranges of current and field. The spin-transfer effect was shown to exhibit an asymmetry as a function of current direction.

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AN - SCOPUS:2942631455

SN - 0021-8979

VL - 95

SP - 7423

EP - 7428

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 11 II

ER -

Spin transfer effect in spin-valve pillars for current-perpendicular-to-plane magnetoresistive heads (invited)

Abstract

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