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A domain wall in a ferromagnetic system will move under the action of an external magnetic field. Ultrathin Co layers sandwiched between Pt have been shown to be a suitable experimental realization of a weakly disordered 2D medium in which…

材料科学 · 物理学 2011-08-11 P. Politi , P. J. Metaxas , J. -P. Jamet , R. L. Stamps , J. Ferré

Movements of individual domain walls in a ferromagnetic garnet were studied with angstrom resolution. The measurements reveal that domain walls can be locked between adjacent crystallographic planes and propagate by distinct steps matching…

介观与纳米尺度物理 · 物理学 2007-05-23 K. S. Novoselov , A. K. Geim , S. V. Dubonos , E. W. Hill , I. V. Grigorieva

The compensated magnetic order and characteristic, terahertz frequencies of antiferromagnetic materials makes them promising candidates to develop a new class of robust, ultra-fast spintronic devices. The manipulation of antiferromagnetic…

Domain wall motion along ferrimagnets is evaluated using micromagnetic simulations and a collective-coordinates model, both considering two sublattices with independent parameters. Analytical expressions are derived for strips on top of…

应用物理 · 物理学 2020-11-20 Eduardo Martínez , Víctor Raposo , Óscar Alejos

A complete set of the generalized drift-diffusion equations for a coupled charge and spin dynamics in ferromagnets in the presence of extrinsic spin-orbit coupling is derived from the quantum kinetic approach, covering major transport…

介观与纳米尺度物理 · 物理学 2018-05-02 C. O. Pauyac , M. Chshiev , A. Manchon , S. A. Nikolaev

Ferromagnetism and superconductivity are most fundamental phenomena in condensed matter physics. Entailing opposite spin orders, they share an important conceptual similarity: Disturbances in magnetic ordering in magnetic materials can…

We consider long and narrow spin valves composed of a first magnetic layer with a single domain wall (DW), a normal metal spacer and a second magnetic layer that is a planar or a perpendicular polarizer. For these structures, we study…

材料科学 · 物理学 2009-11-13 A. V. Khvalkovskiy , K. A. Zvezdin , Ya. V. Gorbunov , V. Cros , J. Grollier , A. K. Zvezdin

We carry out large-scale micromagnetic simulations which demonstrate that due to topological constraints, internal domain walls (Bloch lines) within extended domain walls are more robust than domain walls in nanowires. Thus, the possibility…

材料科学 · 物理学 2015-09-17 Touko Herranen , Lasse Laurson

The spin wave transportation through a transverse magnetic domain wall (DW) in a magnetic nanowire is studied. It is found that spin wave passes through a DW without reflection. A magnon, the quantum of the spin wave, carries opposite spins…

介观与纳米尺度物理 · 物理学 2011-10-24 P. Yan , X. S. Wang , X. R. Wang

In ferromagnets, magnons may condense into a single quantum state. Analogous to superconductors, this quantum state may support transport without dissipation. Recent works suggest that longitudinal spin transport through a thin-film…

介观与纳米尺度物理 · 物理学 2015-12-09 Hans Skarsvåg , Cecilia Holmqvist , Arne Brataas

We present a general approach for studying the dynamics of domain walls in biaxial ferromagnetic stripes with functionally graded Dzyaloshinskii-Moriya interaction (DMI). By engineering the spatial profile of the DMI parameter we propose…

Interfacial ferroelectricity offers a promising platform for ultrafast, low-power memory devices. While previous studies have demonstrated the importance of domain wall in polarization switching, the coexistence of various domain wall types…

材料科学 · 物理学 2025-12-24 Hao-Wen Xu , Wen-Cheng Fan , Jun-Ding Zheng , Cheng-Shi Yao , Ni Zhong , Wen-Yi Tong , Chun-Gang Duan

We theoretically demonstrate that the presence of Dzyaloshinskii-Moriya Interaction (DMI) can lead to enhancement of the spin-motive force (SMF) arising due to field-induced ferromagnetic domain wall motion. A SMF refers to an electric…

介观与纳米尺度物理 · 物理学 2018-12-05 Yuta Yamane

Understanding the domain wall (DW) dynamics in magnetic nanowires (NW) is crucial for spintronic-based applications demanding the use of DWs as information carriers. This work focuses on the dynamics of a DW displacing along a bent NW with…

介观与纳米尺度物理 · 物理学 2022-11-30 G. H. R. Bittencourt , S. Castillo-Sepúlveda , O. Chubykalo-Fesenko , R. Moreno , D. Altbir , V. L. Carvalho-Santos

Magnetic domain walls function as a wave guide for low energy magnons. In this paper we develop the theory for the non-local transport of these bound magnons through a ferromagnetic insulator that are injected and detected electrically in…

介观与纳米尺度物理 · 物理学 2021-08-25 Dion M. F. Hartmann , Andreas Rückriegel , Rembert A. Duine

Spin waves (or magnons) interact with magnetic domain walls (DWs) in a complicated way that a DW can propagate either along or against magnon flow. However, thermally activated magnons always drive a DW to the hotter region of a nanowire of…

介观与纳米尺度物理 · 物理学 2015-06-18 X. S. Wang , X. R. Wang

The issue of whether a thermal gradient acts like a magnetic field or an electric current in the domain wall (DW) dynamics is investigated. Broadly speaking, magnetization control knobs can be classified as energy-driving or…

介观与纳米尺度物理 · 物理学 2019-09-04 M. T. Islam , X. S. Wang , X. R. Wang

The scalability of quantum networks based on solid-state spin qubits is hampered by the short range of natural spin-spin interactions. Here, we propose a scheme to entangle distant spin qubits via the soft modes of an antiferromagnetic…

介观与纳米尺度物理 · 物理学 2019-04-17 B. Flebus , Y. Tserkovnyak

We consider a thin ferromagnetic layer to which an external field or a current are applied along an in plane easy axis. The perpendicular hard axis anisotropy constant is large so that the out of plane magnetization component is smaller…

介观与纳米尺度物理 · 物理学 2018-10-24 E. A. Cardenas , M. C. Depassier

Spin waves (SWs), being usually reflected by domain walls, could also be channeled along them. Edge domain walls yield the interesting, and potentially applicable to real devices property of broadband spin waves confinement to the edges of…

其他凝聚态物理 · 物理学 2022-04-19 Diego Caso , Farkhad G. Aliev
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