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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https://elib.sfu-kras.ru/handle/2311/30291Author:
Djuzhev, Nikolay A.
Popkov, Anatoly F .
Makhiboroda, Maksim A.
Demin, Gleb D.
Kozmin, Aleksandr M.
Chinenkov, Maksim Y.
Дюжев, Николай А
Попков, Анатолий Ф.
Махиборода, Максим А.
Демин, Глеб Д.
Козьмин, Александр М.
Чиненков, Максим Ю.
Date:
2016-12Journal Name:
Журнал Сибирского федерального университета. Математика и физика. Journal of Siberian Federal University. Mathematics & Physics;2017 10 (1)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 Представлены результаты исследования неоднородностей намагниченности на поверхности
тонких магнитных пленок в структуре многослойного магнитного туннельного перехода (МТП)
Ta/CoFeB/MgO/CoFeB/Ta с помощью высокочувствительных зондов МСМ. Проведено микромаг-
нитное моделирование магнитной динамики в CoFeB магнитном слое при наведении внешнего
магнитного поля величиной 0.5 Тл с использованием программного пакета mumax3. Найдены обла-
сти существования магнитных вихрей и доменных стенок в CoFeB магнитной пленки, а также
измерены толщины доменных стенок в нанометровом масштабе
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