Room Temperature Instability of Exchange Anisotropy in FeMn/FeCo System

Erika Jiménez; Nikolai Mikuszeit; Demetrio R. Cavicchia; Lorella Rossi; Franco D'Orazio

doi:10.4028/www.scientific.net/SSP.233-234.509

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HomeSolid State PhenomenaSolid State Phenomena Vols. 233-234Room Temperature Instability of Exchange...

Room Temperature Instability of Exchange Anisotropy in FeMn/FeCo System

Abstract:

Ferromagnetic (FM) FeCo is investigated in exchange bias systems. The ferromagnetic layer is grown on a FeMn antiferromagnetic (AFM) layer. Partial superficial oxidation of FeCo is observed. The standard field cooling procedure results in a large room temperature exchange bias effect. However, the training effect observed when the hysteresis loops are repeated does not have a saturating trend. This behavior is related to the evolution of pinned moments at the FM/AFM interface. X-ray circular magnetic dichroism technique is used to clarify this mechanism.

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Solid State Phenomena (Volumes 233-234)

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509-512

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.233-234.509

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Online since:

July 2015

Authors:

Erika Jiménez*, Nikolai Mikuszeit, Demetrio R. Cavicchia, Lorella Rossi, Franco D'Orazio

Keywords:

Exchange Bias, Thin Film Growth, X-Ray Magnetic Dichroism

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DOI: 10.1364/oe.15.017592

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