Journal of Siberian Federal University. Mathematics & Physics / The Characteristics of Observation of the Non-uniform Magnetization on the Surface of the Thin Magnetic Films in Ta/CoFeB/MgO/CoFeB/Ta Multilayers

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Issue
Journal of Siberian Federal University. Mathematics & Physics. 2017 10 (1)
Authors
Djuzhev, Nikolay A.; Popkov, Anatoly F .; Makhiboroda, Maksim A.; Demin, Gleb D.; Kozmin, Aleksandr M.; Chinenkov, Maksim Y.
Contact information
Djuzhev, Nikolay A.: National Research University of Electronic Technology (MIET) Shokina sq., bld. 1, Moscow, Zelenograd, 124498 Russia; Popkov, Anatoly F .: National Research University of Electronic Technology (MIET) Shokina sq., bld. 1, Moscow, Zelenograd, 124498 Russia; Makhiboroda, Maksim A.: National Research University of Electronic Technology (MIET) Shokina sq., bld. 1, Moscow, Zelenograd, 124498 Russia; Demin, Gleb D.: National Research University of Electronic Technology (MIET) Shokina sq., bld. 1, Moscow, Zelenograd, 124498 Russia; Kozmin, Aleksandr M.: National Research University of Electronic Technology (MIET) Shokina sq., bld. 1, Moscow, Zelenograd, 124498 Russia; Chinenkov, Maksim Y.: National Research University of Electronic Technology (MIET) Shokina sq., bld. 1, Moscow, Zelenograd, 124498 Russia;
Keywords
magnetic force microscopy; thin magnetic films; magnetic domains; magnetic tunnel junction
Abstract

This work presents the results of the study of non-uniformly magnetized regions on the surface of thin magnetic films in multilayer magnetic tunnel junction (MTJ) structure Ta/CoFeB/MgO/CoFeB/Ta ob- served by highly sensitive magnetic force microscopy (MFM) probes. The micromagnetic simulation of the magnetization dynamics in CoFeB magnetic layer after the application of the external magnetic field of 0.5 T is conducted using mumax3 open-source software. The areas of the existence of magnetic vortices and domain walls in CoFeB magnetic film are found where the domain wall thickness was measured by MFM in the nanometer scale

Pages
40–44
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/30291