Article
Chemistry, Multidisciplinary
Jijun Yun, Baoshan Cui, Qirui Cui, Xiaodong He, Yuhan Chang, YingMei Zhu, Ze Yan, Xi Guo, Hongfei Xie, Jianrong Zhang, Qiaoning Bai, Yongbo Zhai, Hengyi Xu, Yalu Zuo, Dezheng Yang, Chenglong Jia, Guoqiang Yu, Hao Wu, Hongxin Yang, Desheng Xue, Li Xi
Summary: The interlayer Dzyaloshinskii-Moriya interaction (DMI) in synthetic ferromagnetic/antiferromagnetic Pt/Co/Pt/Ru/Pt/Co/Ta structures shows uniaxial anisotropic characteristics and can be tuned by the thickness of the Ru layer, which is beneficial for designing future spintronic devices with 3D spin textures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jinghua Liang, Mairbek Chshiev, Albert Fert, Hongxin Yang
Summary: In this study, we used atomistic spin calculations to investigate an intriguing type of Dzyaloshinskii-Moriya interaction (DMI) that emerges in films with composition gradient. We found that the strength and chirality of this DMI can be controlled by the composition gradient, even in disordered systems. Our study also demonstrated the DMI-induced chiral magnetic structures and field-free spin-orbit torque switching, both of which are crucial for practical device applications.
Article
Chemistry, Multidisciplinary
Wei Zhou, Chung Ting Ma, S. Joseph Poon
Summary: This study reports the average Dzyaloshinskii-Moriya interaction (DMI) of MgO/Mn4N(17 nm)/CuxPt1-x(3 nm) extracted from the anomalous Hall effect. The DMI decreases from 0.267 mJ/m(2) to 0.011 mJ/m(2) with non-linear tendencies as the Cu concentration in the CuxPt1-x capping layer increases from 0 to 1, demonstrating the control of the DMI through the CuxPt1-x capping layer. Furthermore, a solid solution model is developed based on an XPS compositional depth profile to analyze the possible effects on the DMI from the mixing layers at the surface of Mn4N.
Article
Engineering, Electrical & Electronic
Thomas Wong, Vincent Sokalski
Summary: This study evaluates the micromagnetic energy of a domain wall in a thin, horn-shaped nanostructure and proposes a method to extract the strength of the interfacial Dzyaloshinskii-Moriya interaction (DMI) based on the equilibrium position of the wall. Numerical and semi-analytical calculations show broad agreement and provide an alternative framework for future measurement of DMI.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Engineering, Electrical & Electronic
A. Magni, G. Carlotti, A. Casiraghi, E. Darwin, G. Durin, L. Herrera Diez, B. J. Hickey, A. Huxtable, C. Y. Hwang, G. Jakob, C. Kim, M. Klaui, J. Langer, C. H. Marrows, H. T. Nembach, D. Ravelosona, G. A. Riley, J. M. Shaw, V. Sokalski, S. Tacchi, M. Kuepferling
Summary: Experimental studies using magneto-optics have shown a correlation between domain wall roughness and interface roughness of sample layers, with standard creep hypothesis models unable to accurately reproduce domain wall velocity profiles under high roughness conditions. Comparison with Brillouin light scattering measurements revealed that the latter method often yields higher measured values of Dzyaloshinskii-Moriya interaction.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Materials Science, Multidisciplinary
Soubhik Kayal, Saikat Maji, Ankan Mukhopadhyay, P. S. Anil Kumar
Summary: Magnetic samples with a perpendicular easy axis have advantages over those with an in-plane easy axis, such as better thermal stability and higher data storage density. This perpendicular magnetic anisotropy is caused by spatial inversion asymmetry at the interfaces between a ferromagnet and a heavy metal. Recent studies have achieved current-induced magnetization reversal without magnetic fields by breaking the lateral structural symmetry. In this study, a Ta/Pt/CoFeB/Pt system with both normal and lateral spatial inversion asymmetry was prepared, leading to tilted perpendicular magnetic anisotropy.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
O. G. Udalov, M. V. Sapozhnikov
Summary: The study focuses on the internal structure and orientation of domain walls in a ferromagnetic film with out-of-plane anisotropy and anisotropic interfacial Dzyaloshinskii-Moriya interaction (iDMI). The interplay between magnetostatic interaction and iDMI determines the structure and orientation of the domain walls, resulting in either labyrinth or oriented stripe domain structures. The analytical findings are supported by micromagnetic simulations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Physics, Multidisciplinary
Jiaxin Du, Mei Li, Xue Zhang, Bin Xi, Yong-Jun Liu, Chun-Gui Duan, Jie Lu
Summary: This study investigates the steady-flow dynamics of ferromagnetic 180-degree domain walls in long and narrow spin valves with interfacial Dzyaloshinskii-Moriya interaction. The results show that the dynamics of the domain walls can be manipulated by controlling the magnetization orientation of the polarizers, providing possibilities for magnetic nanodevices with rich functionality and high robustness.
NEW JOURNAL OF PHYSICS
(2023)
Review
Chemistry, Physical
Robert E. Camley, Karen L. Livesey
Summary: This article reviews the recent research on the Dzyaloshinskii-Moriya interaction (DMI) in magnetic and multiferroic materials, covering topics such as new magnetic structures, changes in domain wall structures, and the influence of DMI on spin wave behavior. It also briefly discusses multiferroic materials and new two-dimensional materials with DMI.
SURFACE SCIENCE REPORTS
(2023)
Article
Materials Science, Multidisciplinary
H. Vigo-Cotrina, A. Guzman-Arana
Summary: In this study, the stabilization of k pi skyrmions (k = 1, ..., 5) in a ferromagnetic dot under the anisotropic Dzyaloshinskii-Moriya interaction (DMI) was investigated using micromagnetic simulations. The results showed that the shape and size of the k pi skyrmions depended on the values of D-x and D-y, and a rich phase diagram was obtained. Additionally, the power spectra and spatial profiles of the spin wave modes of the k pi skyrmions were obtained as a function of D-x and D-y, revealing a distribution of maximum amplitudes in circular or elliptical rings in the ferromagnetic dot.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jose Pena Garcia, Aymen Fassatoui, Marlio Bonfim, Jan Vogel, Andre Thiaville, Stefania Pizzini
Summary: The velocity of domain walls in magnetic trilayers is strongly influenced by the strength of the interfacial Dzyaloshinskii-Moriya interaction (DMI), particularly in relation to the demagnetizing field within the domain wall. By using a one-dimensional model and two-dimensional simulations, the impact of these interactions on velocity curves can be further elucidated.
Article
Engineering, Electrical & Electronic
Diqing Nian, Mingmin Zhu, Yang Qiu, Han Yang, Guoliang Yu, Haomiao Zhou
Summary: This study describes the effect of the interfacial Dzyaloshinskii-Moriya interaction (i-DMI) on the magnetization dynamics induced by strain, considering the magnetoelastic coupling between spin and strain. The results show that the i-DMI-induced intrinsic magnetization tilting excites lateral magnetization dynamics and spin waves, generating quantized width modes with odd mode numbers. Additionally, higher frequency excitation fields generate two spin wave modes with different mean free paths.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Multidisciplinary Sciences
Khadijeh Ahmadi, Farzad Mahfouzi, Loghman Jamilpanah, Morteza Mohseni, Tobias Boettcher, Philipp Pirro, Nicholas Kioussis, Johan Akerman, S. A. Seyyed Ebrahimi, Seyed Majid Mohseni
Summary: This research demonstrates that thermal annealing can induce iDMI in symmetric multilayer structures, which was evidenced by Brillouin light scattering spectroscopy and structural characterizations. First principles electronic structure calculations were used to explain the possible mechanism of iDMI induction.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Zedong Xu, Qi Liu, Yanjiang Ji, Xiaowen Li, Junxue Li, Junling Wang, Lang Chen
Summary: In this study, the topological spin textures in magnetic insulator films were investigated by detecting the spin-Hall topological Hall effect (SH-THE). It was found that the topological spin textures can be tuned by epitaxial strain. The study also indicated that the Pt/TmIG bilayer configuration can record the topological spin textures at room temperature and low field.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Physics, Applied
Maokang Shen, Xiangyu Li, Yue Zhang, Xiaofei Yang, Shi Chen
Summary: In this topical review, recent investigations on the iDMI-relevant magnetic dynamics of HM/FM bilayer systems are introduced and discussed. The individual contributions of the inner iDMI and the boundary iDMI to magnetic dynamics are highlighted. The magnetic dynamic behaviors are essential for the functions of novel magnetic information devices.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
