FERROMAGNETIC-RESONANCE IN FE ZR MULTILAYERS

We report our ferromagnetic resonance measurements for three series of Fe/Zr multilayers with thickness ratio of Fe to Zr sublayers equal to 2:1, 1:1, and 1:2, respectively. These measurements may serve as an e xample of employing ferromagnetic resonance technique as a sensitive p robe for monitoring the magnetic phases formed at interfaces in the ea rliest stages of the interdiffusion reaction in multilayer Fe/Zr films for which the onset of the amorphization takes place during depositio n due to thermodynamics of the system. The resulting structure may be regarded as strongly inhomogeneous one that includes distinct ferromag netic phases related to the Fe atoms in various surroundings.