Phase diagram in exchange-coupled CoTb/[Co/Pt] multilayer-based magnetic tunnel junctions - Université de Lorraine Access content directly
Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 2015

Phase diagram in exchange-coupled CoTb/[Co/Pt] multilayer-based magnetic tunnel junctions

Mathias Bersweiler
Daniel Lacour
Karine Dumesnil
François Montaigne
Michel Hehn

Abstract

Magnetic and magneto-transport properties of [Co/Pt]/MgO/[Co/Pt]CoTb magnetic tunnel junctions have been investigated. Depending on the thickness of the Pt layer, temperature, and field history, the [Co/Pt]CoTb hard layer shows complex behaviors that can be reproduced by micromagnetic calculations. The magnetic tunnel junctions appear to exhibit conventional behavior but also exchange bias and spring magnet and domain duplication phenomena that have been observed combining magnetometry and interface-sensitive spin-dependent tunnel transport.
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hal-01381343 , version 1 (14-10-2016)

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Mathias Bersweiler, Daniel Lacour, Karine Dumesnil, François Montaigne, Michel Hehn. Phase diagram in exchange-coupled CoTb/[Co/Pt] multilayer-based magnetic tunnel junctions. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 92, pp.224431 - 224431. ⟨10.1103/PhysRevB.92.224431⟩. ⟨hal-01381343⟩
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