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

Title
Influence of Mn diffusion on IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers
Author
Vinai, G 1 ; Frangou, L 2 ; Castan-Guerrero, C 1 ; Bonanni, V 3 ; Gobaut, B 4 ; Auffret, S 2 ; Prejbeanu, I L 2 ; Dieny, B 2 ; Baltz, V 2 ; Torelli, P 1 

 Laboratorio TASC, IOM-CNR, S.S. 14 km 163.5, Basovizza, I-34149 Trieste, Italy 
 SPINTEC, Univ. Grenoble Alpes / INAC-CEA / CNRS, F-38000 Grenoble, France 
 Laboratorio TASC, IOM-CNR, S.S. 14 km 163.5, Basovizza, I-34149 Trieste, Italy; Department of Physics, University of Milan, Via Celoria 16, I-20133 Milan, Italy 
 Sincrotrone Trieste S.C.p.A., S.S.14 km 163.5, Area Science Park, 34149 Trieste, Italy 
Publication year
2017
Publication date
Oct 2017
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2574532902
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.