Interfacial coupling by FMR

Interfacial coupling across a modifi ed interface studied with ferromagnetic resonance.
R. Magaraggia, S. McIntyre, and K. Kennewell, R. L. Stamps, M. Ali, D. Greig, B. J. Hickey, and C. H. Marrows.
ArXiv 1112.2045 (2011)

(a) FMR resonance field for a 60.5 nm NiFe film with a resonance frequency of 3 GHz as a function
of exchange coupling Jint to a 6 nm thick IrMn antiferromagnet. (b) The FEX resonance field with a resonance frequency.