Journal
NANOSCALE
Volume 12, Issue 35, Pages 18091-18095Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nr04193a
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Funding
- Antiferromagnetic proximity effect and development of epitaxial bimetallic antiferromagnets -two routes towards nextgeneration spintronics project within the Homing programme of the Foundation for Polish Science - European Union under the European Region
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We show that in a uniform thickness NiO(111)/Fe(110) epitaxial bilayer system, at given temperature near 300 K, two magnetic states with orthogonal spin orientations can be stabilized in antiferromagnetic NiO. Field-free, reversible switching between these two antiferromagnetic states is demonstrated. The observed phenomena arise from the unique combination of precisely tuned interface magnetic anisotropy, thermal hysteresis of spin reorientation transition and interfacial ferromagnet/antiferromagnet exchange coupling. The possibility of field-free switching between two magnetic states in an antiferromagnet is fundamentally interesting and can lead to new ideas in heat assisted magnetic recording technology.
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