WITHDRAWN: Creation and Switching of Easy Magnetization Axis of Magnetic Anisotropy in Fe2NiAl/MgO Heterostructure

Author(s):  
S. Nazir
2021 ◽  
Author(s):  
Huaixiang Wang ◽  
Jinghua Song ◽  
Weipeng Wang ◽  
Yuansha Chen ◽  
Xi Shen ◽  
...  

Abstract Interface engineering is an effective and feasible method to regulate the magnetic anisotropy of films by altering interfacial states between different films. Using the technique of pulsed laser deposition, we prepared La0.67Sr0.33MnO3 (LSMO) and La0.67Sr0.33MnO3/SrCoO2.5 (LSMO/SCO) films on the (110)-oriented La0.3Sr0.7Al0.65Ta0.35O3 substrates. By covering the SCO film above the LSMO film, we transformed the easy magnetization axis of LSMO from the [001] axis to the [1\(\stackrel{\text{-}}{\text{1}}\)0] axis in the film plane. Based on statistical analyses, we found that the corresponding Mn-Mn ionic distances are different in the two types of LSMO films, causing different distortions of Mn-O octahedron in the LSMO film. In addition, it also induces diverse electronic occupation states in Mn3+ ions. The eg electron of Mn3+ occupies 3z2-r2 and x2-y2 orbitals in the LSMO and LSMO/SCO, respectively. We conclude that the electronic spin reorientation leads to the transformation of the easy magnetization axis in the LSMO films.


1991 ◽  
Vol 231 ◽  
Author(s):  
Akira Yamaguchi ◽  
We-Hyo Soe ◽  
Ryoichi Yamamoto ◽  
Masonobu Kobayashi

AbstractThe structural and magnetic properties of sputtered Ag/Co, Pd/Co, and AgPd/Co multilayered films were investigated. When substrate temperature during deposition (Ts) was set at room temperature, the easy magnetization axis of the Pd/Co films with Co thickness less than 7Å was normal to the film plane and that of the Ag/Co films was parallel. AgPd/Co multilayered films showed a transition of the preferred direction of magnetic moment from lying in the film plane towards lying along the film normal when increasing the Pd concentration above 81 at%. Moreover, an anomalous reduction of the saturation magnetization was found. The perpendicular magnetic anisotropy of Pd/Co films with low Ts increased with decreasing the thickness of Co layer. However, the Pd/Co films with high Ts showed opposite tendency.


2019 ◽  
Vol 89 (1) ◽  
pp. 72
Author(s):  
В.В. Демидов ◽  
А.Е. Мефёд

AbstractPossibilities of magnetic pseudoresonance (a non-resonance peak of magnetic susceptibility) were studied and compared with the ferromagnetic resonance (FMR) in measuring the parameters of thin ferromagnetic films with in-plane uniaxial magnetic anisotropy. The measurements were conducted with two characteristic samples of ferromagnetic films showing this effect. A Q -meter operating at a frequency near 300 MHz (for pseudoresonance) and a standard X -band magnetic resonance spectrometer (for FMR) were used. The Q -meter working at 300 MHz was shown to detect reliably the magnetic pseudoresonance in both epitaxial and polycrystalline films. It was found that the accuracy of determination of the magnetic anisotropy field and orientation of the easy magnetization axis provided by the pseudoresonance method is as good as with FMR, and in some cases the pseudoresonance method gives additional information.


1996 ◽  
Vol 458 ◽  
Author(s):  
T. Yang ◽  
W. H. Soe ◽  
B. X. Liu ◽  
R. Yamamoto

ABSTRACTThe magnetic properties of sputtered RE-TM(CoGd)/Pd multilayered films were studied. CoGd layers with high Gd concentration were amorphous. Reducing the Gd concentration, CoGd layers changed from amorphous to crystalline gradually. Like in the crystalline Co/Pd multilayered films, perpendicular magnetic anisotropy(PMA) was observed only for CoGd/Pd multilayered films with thin magnetic layer. It is interesting to note that critical magnetic layer thickness, below which the easy magnetization axis is perpendicular to the film plane, reaches 2.5nm for CoGd/Pd multilayered films with amorphous CoGd layers and is larger than that of Co/Pd multilayered films. Kerr rotation was found decreased with the adding of Gd.


Author(s):  
A. A. Mistonov ◽  
I. S. Dubitskiy ◽  
A. H. A. Elmekawy ◽  
E. G. Iashina ◽  
S. V. Sotnichuk ◽  
...  

2016 ◽  
Vol 59 (5) ◽  
pp. 612-617
Author(s):  
A. A. Gavrilyuk ◽  
A. L. Semenov ◽  
A. R. Gafarov ◽  
A. V. Gavrilyuk ◽  
N. P. Kovaleva ◽  
...  

2022 ◽  
Vol 1049 ◽  
pp. 186-191
Author(s):  
Mirzo Z. Sharipov ◽  
Dilshod E. Hayitov ◽  
Mirzohid N. Rizoqulov

A model of the rearrangement of the domain structure of the Tb0.2Y2.8Fe5O12 garnet ferrite in the temperature region of the spontaneous reorientation of the easy magnetization axis is proposed, which makes it possible to consistently describe (at a qualitative level) the entire set of experimental results obtained. The latter makes it possible to make a choice in favor of the fluctuation mechanism of nucleation of domains of a new magnetic phase in the process of reorientation of the direction of the easy magnetization axis.


2018 ◽  
Vol 185 ◽  
pp. 03009
Author(s):  
Elena Shalygina ◽  
Anna Kharlamova ◽  
Andrey Makarov ◽  
Galina Kurlyandskaya ◽  
Andrey Svalov

The results on investigation of structural and magnetic characteristics of Co/Cu/Co thin-film systems obtained by magnetron sputtering on glass substrates are presented. The thickness of Co layers in all samples is equal to 5 nm and the Cu layer is varied from 0.5 to 4 nm. It is found that the saturation field, HS, oscillates in magnitude with increasing Cu layer thickness with the period of the order of 1 nm. The maximum values of HS are observed for tCu = 1.4, 2.2 and 3.2 nm. The hysteresis loops measured for these samples in a magnetic field applied along the easy magnetization axis have a two-step form, and for other tCu – rectangular one. The obtained results are explained by the presence of exchange coupling between the ferromagnetic layers through a Co spacer and its oscillating behavior with changing tCu.


1975 ◽  
Vol 39 (3) ◽  
pp. 661-664 ◽  
Author(s):  
Taketoshi Hibiya ◽  
Yasuharu Hidaka ◽  
Shozo Fujiwara ◽  
Koichi Matsumi

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