XXVII International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 13-16, 2023
Magnetism

Impact of the mutual direction of Polarizer and Free Layer on the auto-oscillation mode of magnetic tunnel junctions (MTJs) of different geometry

V. R. Kikteva^ab, K. V. Kiseleva^ac, G. A. Kichin^ad, P. N. Skirdkov^ade, K. A. Zvezdin<sup>ade

a</sup> New Spintronic Technologies LLC
^b Bauman Moscow State Technical University
^c Skolkovo Institute of Science and Technology
^d Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
^e Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow

Abstract: In this work we studied the auto-oscillation mode of structures based on magnetic tunnel junctions. During the experiment we studied how different values and orientation of the magnetic field affect the efficiency of the auto-oscillations regime for samples of various shapes. The auto-oscillation mode in samples was observed near the transition from one state of magnetization of the free layer to another. It was found that the maximum value of the power spectral density and its position relative to the frequency axis can be controlled by changing the magnitude and orientation of the external magnetic field.

Keywords: magnetic tunnel junction (MTJ), auto-oscillations, power spectral density, nanooscillator.

Received: 17.04.2023
Revised: 17.04.2023
Accepted: 11.05.2023

DOI: 10.21883/FTT.2023.06.55646.03H

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