Using exchange bias to extend the temperature range of square loop behavior in [PtCo] multilayers with perpendicular anisotropy

J. Sort; F. Garcia; S. Auffret; B. Rodmacq; B. Dieny; V. Langlais; S. Suriñach; J. S. Muñoz; M. D. Baró; J. Nogús

doi:https://doi.org/10.1063/1.2139840

Using exchange bias to extend the temperature range of square loop behavior in [PtCo] multilayers with perpendicular anisotropy

J. Sort, F. Garcia, S. Auffret, B. Rodmacq, B. Dieny, V. Langlais, S. Suriñach, J. S. Muñoz, M. D. Baró, J. Nogús

Department of Physics

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

12 Citations (Scopus)

Abstract

The temperature dependence of the magnetic properties of [PtCo] multilayers (ML), exhibiting perpendicular anisotropy, with and without exchange biasing with an antiferromagnet (AFM) has been investigated. Upon heating, a loss of the out-of-plane anisotropy and, consequently, of the remanence to saturation ratio is observed in these systems. However, such effect occurs at higher temperatures in the [PtCo] ML exchange coupled to the AFM than for the unbiased ML. This is attributed to the additional anisotropy induced to the ML by the ferromagnetic-antiferromagnetic exchange coupling. © 2005 American Institute of Physics.

Original language	English
Article number	242504
Pages (from-to)	1-3
Journal	Applied Physics Letters
Volume	87
DOIs	https://doi.org/10.1063/1.2139840
Publication status	Published - 19 Dec 2005

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title = "Using exchange bias to extend the temperature range of square loop behavior in [PtCo] multilayers with perpendicular anisotropy",

abstract = "The temperature dependence of the magnetic properties of [PtCo] multilayers (ML), exhibiting perpendicular anisotropy, with and without exchange biasing with an antiferromagnet (AFM) has been investigated. Upon heating, a loss of the out-of-plane anisotropy and, consequently, of the remanence to saturation ratio is observed in these systems. However, such effect occurs at higher temperatures in the [PtCo] ML exchange coupled to the AFM than for the unbiased ML. This is attributed to the additional anisotropy induced to the ML by the ferromagnetic-antiferromagnetic exchange coupling. {\textcopyright} 2005 American Institute of Physics.",

author = "J. Sort and F. Garcia and S. Auffret and B. Rodmacq and B. Dieny and V. Langlais and S. Suri{\~n}ach and Mu{\~n}oz, {J. S.} and Bar{\'o}, {M. D.} and J. Nog{\'u}s",

year = "2005",

month = dec,

day = "19",

doi = "https://doi.org/10.1063/1.2139840",

language = "English",

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Using exchange bias to extend the temperature range of square loop behavior in [PtCo] multilayers with perpendicular anisotropy. / Sort, J.; Garcia, F.; Auffret, S.; Rodmacq, B.; Dieny, B.; Langlais, V.; Suriñach, S.; Muñoz, J. S.; Baró, M. D.; Nogús, J.

In: Applied Physics Letters, Vol. 87, 242504, 19.12.2005, p. 1-3.

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

TY - JOUR

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AU - Sort, J.

AU - Garcia, F.

AU - Auffret, S.

AU - Rodmacq, B.

AU - Dieny, B.

AU - Langlais, V.

AU - Suriñach, S.

AU - Muñoz, J. S.

AU - Baró, M. D.

AU - Nogús, J.

PY - 2005/12/19

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AB - The temperature dependence of the magnetic properties of [PtCo] multilayers (ML), exhibiting perpendicular anisotropy, with and without exchange biasing with an antiferromagnet (AFM) has been investigated. Upon heating, a loss of the out-of-plane anisotropy and, consequently, of the remanence to saturation ratio is observed in these systems. However, such effect occurs at higher temperatures in the [PtCo] ML exchange coupled to the AFM than for the unbiased ML. This is attributed to the additional anisotropy induced to the ML by the ferromagnetic-antiferromagnetic exchange coupling. © 2005 American Institute of Physics.

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DO - https://doi.org/10.1063/1.2139840

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