AI Article Synopsis
- - The perpendicular exchange bias field (H(EB)) in the Cr2O3(111)/(Co/Pt)(3) structure reverses its direction when cooled in different magnetic and electric fields below the Néel temperature of Cr2O3.
- - This reversal is attributed to the formation of antiferromagnetic single domains influenced by the magnetic-electric interaction, which reach the interface of the heterostructure.
- - The findings suggest potential new uses for this technology in advanced magnetoelectronic devices.
Article Abstract
The perpendicular exchange bias field, H(EB), of the magnetoelectric heterostructure Cr2O3(111)/(Co/Pt)(3) changes sign after field cooling to below the Néel temperature of Cr2O3 in either parallel or antiparallel axial magnetic and electric freezing fields. The switching of H(EB) is explained by magnetoelectrically induced antiferromagnetic single domains which extend to the interface, where the direction of their end spins controls the sign of H(EB). Novel applications in magnetoelectronic devices seem possible.
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| http://dx.doi.org/10.1103/PhysRevLett.94.117203 | DOI Listing |
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