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Influence of Mn diffusion on IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers

Authors :
B. Gobaut
B. Dieny
Vincent Baltz
L. Frangou
C. Castán-Guerrero
I. L. Prejbeanu
Valentina Bonanni
Piero Torelli
Giovanni Vinai
Stéphane Auffret
Laboratorio TASC (IOM CNR)
Consiglio Nazionale delle Ricerche (CNR)
SPINtronique et TEchnologie des Composants (SPINTEC)
Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG)
Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Department of Physics, University of Milan
Elettra Sincrotrone Trieste
National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR)
Università degli Studi di Milano = University of Milan (UNIMI)
Source :
Journal of Physics: Conference Series, Journal of Physics: Conference Series, IOP Publishing, 2017, 903, pp.012061. ⟨10.1088/1742-6596/903/1/012061⟩, Journal of physics. Conference series (Online) 903 (2017). doi:10.1088/1742-6596/903/1/012061, info:cnr-pdr/source/autori:Vinai G.; Frangou L.; Castan-Guerrero C.; Bonanni V.; Gobaut B.; Auffret S.; Prejbeanu I.L.; Dieny B.; Baltz V.; Torelli P./titolo:Influence of Mn diffusion on IrMn thickness threshold for the onset of exchange bias in IrMn%2FCo bilayers/doi:10.1088%2F1742-6596%2F903%2F1%2F012061/rivista:Journal of physics. Conference series (Online)/anno:2017/pagina_da:/pagina_a:/intervallo_pagine:/volume:903, Journal of Physics: Conference Series, 2017, 903, pp.012061. ⟨10.1088/1742-6596/903/1/012061⟩
Publication Year :
2017
Publisher :
HAL CCSD, 2017.

Abstract

In this work, we studied the influence of the buffer layer composition on the IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers. By means of magnetometry, x-ray absorption and x-ray photoelectron spectroscopy, we investigated the magnetic and chemical properties of the stacks. We demonstrated a higher diffusion of Mn through the Co layer in the case of a Cu buffer layer. This is consistent with the observation of larger IrMn thickness threshold for the onset of exchange bias.

Details

Language :
English
ISSN :
17426588 and 17426596
Database :
OpenAIRE
Journal :
Journal of Physics: Conference Series, Journal of Physics: Conference Series, IOP Publishing, 2017, 903, pp.012061. ⟨10.1088/1742-6596/903/1/012061⟩, Journal of physics. Conference series (Online) 903 (2017). doi:10.1088/1742-6596/903/1/012061, info:cnr-pdr/source/autori:Vinai G.; Frangou L.; Castan-Guerrero C.; Bonanni V.; Gobaut B.; Auffret S.; Prejbeanu I.L.; Dieny B.; Baltz V.; Torelli P./titolo:Influence of Mn diffusion on IrMn thickness threshold for the onset of exchange bias in IrMn%2FCo bilayers/doi:10.1088%2F1742-6596%2F903%2F1%2F012061/rivista:Journal of physics. Conference series (Online)/anno:2017/pagina_da:/pagina_a:/intervallo_pagine:/volume:903, Journal of Physics: Conference Series, 2017, 903, pp.012061. ⟨10.1088/1742-6596/903/1/012061⟩
Accession number :
edsair.doi.dedup.....95d434358be0c0a4dc90cc1484e18db4
Full Text :
https://doi.org/10.1088/1742-6596/903/1/012061⟩