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相关论文: Chiral Coupling between Magnetic Layers with Ortho…

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Monosilicides of 3d-metals frequently show a chiral magnetic ordering with the absolute configuration defined by the chirality of the crystal structure and the sign of the Dzyaloshinskii-Moriya interaction (DMI). Structural and magnetic…

Magnetic multilayers are a rich class of materials systems with numerous highly tunable physical parameters that determine both their magnetic and electronic properties. Here we present a comprehensive experimental study of a novel system,…

材料科学 · 物理学 2022-06-02 Martin Lonsky , Myoung-Woo Yoo , Yi-Siou Huang , Jiangchao Qian , Jian-Min Zuo , Axel Hoffmann

The interlayer magnetic interaction in bilayer CrI$_3$ plays a crucial role for its device applications. In this work, we studied the interlayer magnetic interaction in $\pi/3$-twisted bilayer CrI$_3$ using first-principles calculations.…

材料科学 · 物理学 2022-01-11 Haodong Yu , Jize Zhao , Fawei Zheng

To stabilize the non-trivial spin textures, e.g., skyrmions or chiral domain walls in ultrathin magnetic films, an additional degree of freedom such as the interfacial Dzyaloshinskii-Moriya interaction (IDMI) must be induced by the strong…

Ultrathin metallic ferromagnets on substrates with strong spin-orbit coupling can exhibit induced chiral interactions of the Dzyaloshinskii-Moriya (DM) form. For systems with perpendicular anisotropy, the presence of DM interactions has…

Mn4N thin film is one of the potential magnetic mediums for spintronic devices due to its ferrimagnetism with low magnetization, large perpendicular magnetic anisotropy (PMA), thermal stability, and large domain wall velocity. A recent…

材料科学 · 物理学 2023-05-17 Wei Zhou , Chung Ting Ma , S. Joseph Poon

We present the results of a systematic micromagnetic study of the effect of the Dzyaloshinskii-Moriya interaction (DMI) on the spin wave band structure of two one-dimensional magnonic crystals (MCs), both with the same periodicity p=300 nm,…

介观与纳米尺度物理 · 物理学 2021-12-13 R. Silvania , M. Kuepferling , S. Tacchi , G. Carlotti

In this work, dynamics of chiral domain walls in long and narrow magnetic heterostructures based on non-centrosymmetric chiral magnets with bulk Dzyaloshinskii-Moriya interactions (DMI) and perpendicular magnetic anisotropy is…

介观与纳米尺度物理 · 物理学 2022-02-02 Mei Li , Bin Xi , Jie Lu , Yongjun Liu

There have been intensive studies on Kitaev materials for the sake of the realization of exotic states such as quantum spin liquid and topological orders. In realistic materials, the Kitaev interaction may coexist with the…

强关联电子 · 物理学 2023-02-22 Kangkang Li

We demonstrate that effects of spin-orbit coupling and inversion asymmetry exist in a single GdFeCo ferrimagnetic layer, even without a heavy metal interface. We use electric transport measurements to quantify the spin-orbit torques. We…

Array-patterned CoPd-based heterostructures are created through e-beam lithography and plasma pretreatment that induces oxidation with depth gradient in the CoPd alloy films, breaking the central symmetry of the structure. Effects on the…

介观与纳米尺度物理 · 物理学 2022-04-27 Wei-Hsiang Wang , Ching-Yang Pan , Chak-Ming Liu , Wen-Chin Lin , Pei-hsun Jiang

Controlling magnetic order in magnetic topological insulators (MTIs) is a key to developing spintronic applications with MTIs, and is commonly achieved by changing the magnetic doping concentration, which inevitably affects…

介观与纳米尺度物理 · 物理学 2021-07-30 Xiong Yao , Hee Taek Yi , Deepti Jain , Myung-Geun Han , Seongshik Oh

By revealing an underlying relation between the Dzyaloshinskii-Moriya interaction (DMI) and the scalar spin chirality, we develop the theory of magnon thermal Hall effects in antiferromagnetic systems. The dynamic fluctuation of the scalar…

强关联电子 · 物理学 2019-02-26 Yalei Lu , Xing Guo , Vladimir Koval , Chenglong Jia

We determine the Dzyaloshinskii-Moriya interaction within and between two magnetic cobalt layers separated by a non-magnetic spacer through ab initio calculations. We investigate different materials for the non-magnetic layer, focusing on…

It is well established that the spin-orbit interaction in heavy metal/ferromagnet heterostructures leads to a significant interfacial Dzyaloshinskii-Moriya Interaction (DMI) that modifies the internal structure of magnetic domain walls…

介观与纳米尺度物理 · 物理学 2019-05-22 Ran Cheng , Maxwell Li , Arjun Sapkota , Anish Rai , Ashok Pokhrel , Tim Mewes , Claudia Mewes , Di Xiao , Marc De Graef , Vincent Sokalski

Domain walls (DWs) in perpendicularly magnetized nanotracks (PMNTs) with interfacial Dzyaloshinskii-Moriya interaction (DMI) have become the primary objects of theoretical and experimental interest due to their technological suitability in…

计算物理 · 物理学 2018-11-22 Yue Zhang , Mao-Kang Shen , Zai-Dong Li , Xiao-Fei Yang , Long You

We study the magnetic interactions in atomic layers of Fe and 5d transition-metals such as Os, Ir, and Pt on the (001) surface of Rh using first-principles calculations based on density functional theory. For both stackings of the 5d-Fe…

材料科学 · 物理学 2017-10-11 Sebastian Meyer , Bertrand Dupé , Paolo Ferriani , Stefan Heinze

The magnetic proximity effect in top and bottom Pt layers induced by Co in Ta/Pt/Co/Pt multilayers has been studied by interface sensitive, element specific x-ray resonant magnetic reflectivity. The asymmetry ratio for circularly polarized…

We present an advanced first-principles formalism to evaluate the Dzyaloshinskii-Moriya interaction (DMI) in its modern theory as well as Berry curvatures in complex spaces based on a higher-dimensional Wannier interpolation. Our method is…

材料科学 · 物理学 2018-01-29 Jan-Philipp Hanke , Frank Freimuth , Stefan Blügel , Yuriy Mokrousov

In chiral magnetic materials, numerous intriguing phenomena such as built in chiral magnetic domain walls (DWs) and skyrmions are generated by the Dzyaloshinskii Moriya interaction (DMI). The DMI also results in asymmetric DW speed under in…

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