XXVI International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 14 - March 17, 2022
Magnetism

Magnetic moment transformation in a heterophase nanomagnet GdFeCo|IrMn in the vicinity of the ferrimagnet compensation point

V. S. Gornakov^a, I. V. Shashkov^a, Yu. P. Kabanov^a, O. V. Koplak<sup>b

a</sup> Osipyan Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, Russia
^b Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, Russia

Abstract: Ta|Pt|GdFeCo|IrMn|Pt multilayer structure with perpendicular magnetic anisotropy in vicinity of the ferrimagnet compensation temperature $T_K$ has been carried out. It has been established that the distribution of the magnetic moment in the GdFeCo ferrimagnetic film exchange-coupled to the IrMn antiferromagnet is largely determined by the magnitude and orientation of both the field applied during cooling from room temperature to $T$ = 2 K and the testing field over the entire temperature range. It is shown that the direction of the domain wall moving changes to the opposite one at a fixed value of the amplitude of the magnetic field pulse when the temperature passes through the $T_K$.

Keywords: ferrimagnets, heterostructures, perpendicular magnetic anisotropy, magnetic moment, compensation temperature, domain wall.

Received: 29.04.2022
Revised: 29.04.2022
Accepted: 12.05.2022

DOI: 10.21883/FTT.2022.09.52823.22HH

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