Broadband Ferromagnetic Resonance Characterization of Anisotropies and Relaxation in Exchange-biased IrMn/CoFe Bilayers

dc.contributor.authorMohammadi, Jamileh Beik
dc.contributor.authorJones, Joshua Michael
dc.contributor.authorPaul, Soumalya
dc.contributor.authorKhodadadi, Behrouz
dc.contributor.authorMewes, Claudia K. A.
dc.contributor.authorMewes, Tim
dc.contributor.authorKaiser, Christian
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2018-08-31T14:55:14Z
dc.date.available2018-08-31T14:55:14Z
dc.date.issued2017
dc.description.abstractThe magnetization dynamics of exchange-biased IrMn/CoFe bilayers have been investigated using broadband and in-plane angle-dependent ferromagnetic resonance spectroscopy. The interface energy of the exchange bias effect in these bilayers exceeds values previously reported for metallic antiferromagnets. A strong perpendicular magnetic anisotropy and a small in-plane uniaxial anisotropy are also observed in these films. The magnetization relaxation of the bilayers has a strong unidirectional contribution, which is in part caused by two-magnon scattering. However, a detailed analysis of in-plane angle– and thickness-dependent linewidth data strongly suggests the presence of a previously undescribed unidirectional relaxation mechanism.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationMohammadi, J., et al. (2017): Broadband Ferromagnetic Resonance Characterization of Anisotropies and Relaxation in Exchange-biased IrMn/CoFe Bilayers, Physical Review B 95.
dc.identifier.urihttp://ir.ua.edu/handle/123456789/3799
dc.subjectFerromagnetism
dc.subjectMagnetic anisotropy
dc.titleBroadband Ferromagnetic Resonance Characterization of Anisotropies and Relaxation in Exchange-biased IrMn/CoFe Bilayersen_US
dc.typetext
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