Large Tunable Perpendicular Magnetic Anisotropy in Ultrathin 
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-Based Ferromagnetic Films Induced by Antiferromagnetic 
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Han, Ru; Liu, Lei; Sun, HaiLin; Qin, Hongrui; Zhao, X.P.; Pan, Danfeng; Wei, Der-Hsin; Zhao, Jianhua

doi:10.1103/physrevapplied.19.024033

Cited by 6 publications

(1 citation statement)

References 38 publications

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“…In the case of a single straight wall, the antisymmetric MR can be effectively controlled through the DW inclination angle with respect to the electric field direction, as shown in this study. In particular, the previously reported antisymmetric MR due to the special current-perpendicular-to-single DW configuration is the embodiment of the case with θ = 90 • [14,[34][35][36]. In addition, some irregular DW textures in size-confined films can be regarded as possessing an average inclination angle [16,[20][21][22][23][24][25][26], which essentially contributes to the antisymmetric MR as an equivalent single wall.…”

Section: Resultsmentioning

confidence: 89%

Angular dependence of antisymmetric magnetoresistance in Co-Tb thin films with artificial domain wall inclination

Wang

et al. 2023

J. Phys. D: Appl. Phys.

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We report the observation of angular dependent antisymmetric magnetoresistance (MR) in artificially deformed Co-Tb Hall bar structures with perpendicular magnetization. Simultaneous transport measurements and domain imaging show that the antisymmetric MR is resulted from the generation of single domain wall (DW) inclination due to the restricted geometry, and is further proportional to the inclination associated geometry factor. The results are well described by a theoretical model which is supported by analytic and numerical calculations of nonequilibrium current and Hall voltage distribution in the vicinity of the inclined DW. This finding provides a straightforward and effective approach to control DW geometries, leading to various DW based spintronic device applications.

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Section: Resultsmentioning

confidence: 89%

Angular dependence of antisymmetric magnetoresistance in Co-Tb thin films with artificial domain wall inclination

Wang

et al. 2023

J. Phys. D: Appl. Phys.

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Manipulation of spin–orbit torque and Dzyaloshinskii-Moriya interaction by varying Mn concentration in Pt1-Mn /Co bilayer

Xie

Zhao

Sun

et al. 2023

Journal of Magnetism and Magnetic Materials

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Compositionally modulated perpendicular magnetic anisotropy in tetragonal MnxAl films

Sun,

Zhao,

Han

et al. 2024

Applied Physics Letters

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Rare-earth-free perpendicularly magnetized L10-MnxAl alloy holds promise for low-cost permanent magnets and high-performance spintronic devices. In this Letter, we report a large-scale modulation of perpendicular magnetic anisotropy (PMA) in MnxAl films by changing the composition x. Through utilizing a lattice-matching B2-CoGa underlayer and optimizing growth conditions, the 30-nm-thick MnxAl films can maintain excellent PMA in a wide composition range (0.7 ≤ x ≤ 3). Meanwhile, the crystalline structure and magnetic properties exhibit a strong dependence on the composition with saturation magnetization changing from 443.75 to 20.52 kA/m, coercivity from 0.22 to 5.38 T, and PMA constant up to 1.34 × 106 J/m3. Combining experimental and calculation results, we confirm the existence of ferrimagnetic-like state in MnxAl under Mn-rich conditions. Further experiments validate the continued efficacy of our method in ultrathin MnxAl films, and spin–orbit torque induced magnetization switching has been realized. These results offer valuable insights into the modulation of fundamental properties and promote the potential application of MnxAl alloy.

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Large Tunable Perpendicular Magnetic Anisotropy in Ultrathin Co -Based Ferromagnetic Films Induced by Antiferromagnetic δ−Mn

Cited by 6 publications

References 38 publications

Angular dependence of antisymmetric magnetoresistance in Co-Tb thin films with artificial domain wall inclination

Angular dependence of antisymmetric magnetoresistance in Co-Tb thin films with artificial domain wall inclination

Manipulation of spin–orbit torque and Dzyaloshinskii-Moriya interaction by varying Mn concentration in Pt1-Mn /Co bilayer

Compositionally modulated perpendicular magnetic anisotropy in tetragonal MnxAl films

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