Micromagnetic Modeling of Surface Acoustic Wave Driven Dynamics: Interplay of Strain, Magnetorotation, and Magnetic Anisotropy
Sorbonne Université（索邦大学）；CNRS（法国国家科学研究中心）；Institut des Nanosciences de Paris（巴黎纳米科学研究所）；Université de Strasbourg（斯特拉斯堡大学）；Institut de Physique et Chimie des Matériaux de Strasbourg（斯特拉斯堡材料与物理化学研究所）
Florian Millo, Pauline Rovillain, Massimiliano Marangolo, Daniel Stoeffler
We study the coupling mechanism of surface acoustic waves (SAW) with spin waves (SW) using micromagnetic analysis. The SAW magnetoacoustic excitation field is fully implemented, i.e., all strain and lattice-rotation terms are included. A realistic CoFeB film with a weak in-plane uniaxial anisotropy is considered. We investigate the conditions for efficient SAW--SW coupling, with particular emphasis on the case where the SAW propagates parallel to the external magnetic field, a configuration of special interest for magnonic applications. Remarkably, we find that the anisotropy orientation serves as a knob to tune the parallel resonant interaction. Overall, this work provides a unified and practical picture of SAW--SW coupling in thin magnetized films.
Determination of the energy of the Dzyaloshinskii-Moriya interaction in [Co/Pd(111)]5 superlattices with different Co thickness by micromagnetic simulations of labyrinth domain structures
Effect of lithographically-induced strain relaxation on the magnetic domain configuration in microfabricated epitaxially grown Fe81Ga19
我们调查的光刻引起的应变弛豫的作用，在微米级的设备制造的磁致伸缩合金Fe 81 Ga 19的外延薄膜。由于光刻图案化引起的应变弛豫引起磁各向异性，该磁各向异性与磁晶和形状引起的各向异性竞争，以在稳定磁通闭合畴图案中起关键作用。我们使用磁成像，微磁计算和线性弹性模型来研究接近蚀刻结构边缘的区域。由于由逆磁致伸缩效应引起的感生磁各向异性，该高应变边缘区域对磁畴配置具有显著影响。我们调查之间的竞争的应变引起的和形状引起的各向异性能量，以及由此产生的稳定的域配置，作为酒吧的宽度减少到纳米级范围。在设计基于高磁致伸缩材料的混合磁电自旋电子器件时，理解这种行为将是重要的。
Dynamic Error in Strain Induced Magnetization Reversal of Nanomagnets due to Incoherent Switching and Formation of Metastable States: A Size-dependent Study
Single-pulse strain-induced precessional dynamics of magnetization in Co-doped iron garnet
HFML-FELIX；Radboud University, Institute for Molecules and Materials（拉德堡德大学分子与材料研究所）；Russian Quantum Center, Skolkovo Innovation Center（俄罗斯量子中心斯科尔科沃创新中心）；Faculty of Physics, Lomonosov Moscow State University（莫斯科国立大学物理系）；Faculty of Physics, University of Bialytsok（比亚韦斯托克大学物理系）
Development of large scale CVD grown two dimensional materials for field-effect transistors, thermally-driven neuromorphic memory, and spintronics applications
