[18p-PB1-1~73] 10 Spintronics and Magnetics (Poster)

[18p-PB1-18] Manipulation of two magnon scattering amplitude in ferromagnet/antiferromagnet bilayer structure

〇Hiroto Sakimura^1,2, Akio Asami², Ji Shi¹, Kazuya Ando² (1.Tokyo Tech., 2.Keio Univ.)

Keywords:Antiferromagnet, Magnon, Ferromagnetic resonance

The amplitude of two magnon scattering (TMS) in Ni₈₁Fe₁₉/NiO bilayer was successfully manipulated by changing NiO thickness. The contribution of TMS got larger in the magnon decay process with the increase of NiO thickness due to the interfacial exchange magnetic field produced by NiO. This result provides a new perspective to interpret the spin transport experiments including ferromagnet/antiferromagnet bilayer structure, which is intensively studied in last five years.