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Journal articles
Anti-ferromagnetic coupling in hybrid magnetic tunnel junctions mediated by monomolecular layers of α-sexithiophene
Abstract : We report here on the magnetic coupling taking place between Fe3O4 and Co layers across an organic monolayer of α-sexithiophene (6T). The controlled growth of 6T ultrathin films on epitaxial Fe3O4 surfaces allows to prepare highly homogeneous insulating layers with thicknesses in the range 0.5–2.0 monolayers (ML). A combined study using vibrating sample magnetometry and polarized neutron reflectivity reveals that hybrid Fe3O4/6T/Co tunnel junctions show different magnetic couplings depending on the 6T thickness. In particular, magnetic coupling between Fe3O4 and Co layers separated by 1 ML of 6T is consistent with anti-ferromagnetic coupling, opening new perspectives for controlling magnetization in organic spintronic devices.
https://hal-cea.archives-ouvertes.fr/cea-01481044
Contributor : Dominique Girard <>
Submitted on : Thursday, March 2, 2017 - 10:41:00 AM
Last modification on : Thursday, July 8, 2021 - 3:49:33 AM
Contributor : Dominique Girard <>
Submitted on : Thursday, March 2, 2017 - 10:41:00 AM
Last modification on : Thursday, July 8, 2021 - 3:49:33 AM