Barman, A., Kruglyak, V., Hicken, R., Marrows, C., Ali, M., Hindmarch, A., & Hickey, B. (2002). Characterization of spin valves fabricated on opaque substrates by optical ferromagnetic resonance. Applied Physics Letters, 81(8), 1468-1470. https://doi.org/10.1063/1.1501159