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The current-driven domain wall dynamics along ferrimagnetic systems are here theoretically analyzed as a function of the temperature by means of micromagnetic simulations and a one dimensional model. Contrarily to conventional effective…

应用物理 · 物理学 2019-10-23 Eduardo Martínez , Víctor Raposo , Óscar Alejos

We theoretically study the interaction of spin waves and a domain wall in a quasi-one-dimensional easy-cone ferromagnet. The gapless spin waves on top of a domain wall are found to exhibit finite reflection in contrast to the well-known…

介观与纳米尺度物理 · 物理学 2024-07-10 Wooyon Kim , Se Kwon Kim

Spin waves have the potential to be used as a new platform for data transfer and processing as they can reach wavelengths in the nanometer range and frequencies in the terahertz range. To realize a spin-wave device, it is essential to be…

Through numerical solution of the time-dependent Schrodinger equation, we demonstrate that magnetic chains with uniaxial anisotropy support stable structures, separating ferromagnetic domains of opposite magnetization. These structures,…

材料科学 · 物理学 2007-05-23 S. Yuan , H. De Raedt , S. Miyashita

A numerical model of interacting nanomagnetic elements is used to demonstrate active inference with a three dimensional Artificial Spin Ice structure. It is shown that thermal fluctuations can drive this magnetic spin system to evolve under…

介观与纳米尺度物理 · 物理学 2024-02-28 Robert L. Stamps , Rehana Begum Popy , Johan van Lierop

In this work we study the dynamical properties of a finite array of nanomagnets in artificial kagome spin ice at room temperature. The dynamic response of the array of nanomagnets is studied by implementing a "frustrated celular aut\'omata"…

介观与纳米尺度物理 · 物理学 2026-03-12 Alejandra Leon

We theoretically study the scattering of spin waves from a sharp domain wall in an antiferromagnetic spin chain. While the continuum model for an antiferromagnetic material yields the well-known result that spin waves can pass through a…

介观与纳米尺度物理 · 物理学 2022-09-21 Ehsan Faridi , Se Kwon Kim , Giovanni Vignale

We propose a time-delay oscillator with Mackey-Glass nonlinearity based on a pinned magnetic domain wall in a thin film nanostrip. Through spin transfer torques, electric currents applied along the strip cause the domain wall to deform and…

介观与纳米尺度物理 · 物理学 2021-04-19 Jérôme Williame , Joo-Von Kim

The spin transfer torque generated by a spin-polarized current can induce the shift of the magnetic domain-wall position. In this work, we study theoretically the current-induced domain-wall motion by using the collective coordinate…

介观与纳米尺度物理 · 物理学 2007-05-23 Soon-Wook Jung , Hyun-Woo Lee

N\'eel magnetic domain walls that are stabilized by achiral energy terms instead of the usual Dzyaloshinskii-Moriya interaction will be bistable, with the two possible chiral forms being degenerate. Here we focus on the theoretical study of…

介观与纳米尺度物理 · 物理学 2023-09-14 Eloi Haltz , Kévin J. A. Franke , Christopher H. Marrows

We calculate the interaction between two magnetic domain walls during their current-induced motion. This interaction produces a separation-dependent resistance and also a differential velocity, causing domains in motion to experience an…

介观与纳米尺度物理 · 物理学 2011-11-28 E. A. Golovatski , M. E. Flatté

One of the fundamental effects of the laser-matter interaction is the appearance of an induced transient magnetisation. While the underlying phenomena differ in their microscopic origin and cover a diverse array of materials, here we…

介观与纳米尺度物理 · 物理学 2023-09-26 Paul-Iulian Gavriloaea , Elías Saugar , Rubén Otxoa , Oksana Chubykalo-Fesenko

Thermally induced magnetization dynamics is currently a flourishing field of research due to its potential application in information technology. We study the paradigmatic system of a magnetic domain wall in a thermal gradient which is…

超导电性 · 物理学 2022-02-08 I. V. Bobkova , A. M. Bobkov , Wolfgang Belzig

We present a theoretical study of spin-dependent transport through a ferromagnetic domain wall. With an increase of the number of components of the exchange coupling, we have observed that the variance of the conductance becomes half. As…

介观与纳米尺度物理 · 物理学 2015-06-24 J. Ohe , M. Yamamoto , T. Ohtsuki , K. Slevin

Investigating the emergence of complexity in disordered interacting systems, central to fields like spin glass physics, remains challenging due to difficulties in systematic experimental tuning. We introduce a tunable artificial spin…

介观与纳米尺度物理 · 物理学 2025-06-10 Vinayak Shantaram Bhat , M. Benjamin Jungfleisch

We investigate experimentally magnetic frustration effects in thermally active artificial kagome spin ice. Starting from a paramagnetic state, the system is cooled down below the Curie temperature of the constituent material. The resulting…

介观与纳米尺度物理 · 物理学 2015-06-23 I. A. Chioar , B. Canals , D. Lacour , M. Hehn , B. Santos Burgos , T. O. Mentes , A. Locatelli , F. Montaigne , N. Rougemaille

This review describes in detail the essential techniques used in microscopic theories on spintronics. We have investigated the domain wall dynamics induced by electric current based on the $s$-$d$ exchange model. The domain wall is treated…

介观与纳米尺度物理 · 物理学 2008-11-07 Gen Tatara , Hiroshi Kohno , Junya Shibata

Spin waves (SW) can induce rich domain wall (DW) motion in a perpendicular-magnetic anisotropy nanostrip. In-plane magnetization tilt angle resulting from the fluctuation of the effective field of the magnetization response in the DW region…

强关联电子 · 物理学 2017-07-07 Liang-Juan Chang , Yen-Fu Liu , Ming-Yi Kao , Li-Zai Tsai , Jun-Zhi Liang , Shang-Fan Lee

Multi-domain states of square artificial spin ice show a range of different morphologies ranging from simple stripe-like domains to more organically shaped coral domains. To model the relevant dynamics leading to the emergence of such…

介观与纳米尺度物理 · 物理学 2026-01-09 Matteo Menniti , Naëmi Leo , Pedro Villalba-González , Matteo Pancaldi , and Paolo Vavassori

In this work, we show that, due to the alternating orientation of the spins in the ground state of the artificial square spin ice, the influence of a set of spins at a certain distance of a reference spin decreases faster than the expected…

统计力学 · 物理学 2023-08-31 C. W. Morais , D. N. de Freitas , A. L. Mota , E. C. Bastone