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Accelerating the laser-induced demagnetization of a ferromagnetic film by antiferromagnetic order in an adjacent layer

Research paper by I. Kumberg, E. Golias, N. Pontius, R. Hosseinifar, K. Frischmuth, I. Gelen, T. Shinwari, S. Thakur, C. Schüßler-Langeheine, P. M. Oppeneer, W. Kuch

Indexed on: 23 Dec '20Published on: 15 Dec '20Published in: Physical review. B, Condensed matter and materials physics



Abstract

Author(s): I. Kumberg, E. Golias, N. Pontius, R. Hosseinifar, K. Frischmuth, I. Gelen, T. Shinwari, S. Thakur, C. Schüßler-Langeheine, P. M. Oppeneer, and W. Kuch We study the ultrafast demagnetization of Ni/NiMn and Co/NiMn ferromagnetic/antiferromagnetic bilayer systems after excitation by a laser pulse. We probe the ferromagnetic order of Ni and Co using magnetic circular dichroism in time-resolved pump-probe resonant x-ray reflectivity. Tuning the sample ... [Phys. Rev. B 102, 214418] Published Tue Dec 15, 2020