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Rotating domain wall based sensors that have recently been developed are based on a segmented looping geometry. In order to determine the crucial pinning of domain walls in this special geometry, we investigate the depinning under different…

Materials Science · Physics 2017-11-22 Daniel Heinze , Benjamin Borie , Jürgen Wahrhusen , Hubert Grimm , Mathias Kläui

Transverse magnetoresistance in a ferromagnetic/nonmagnetic/ferromagnetic trilayer originated from charge-spin conversion by anomalous Hall effect is investigated theoretically. Solving the spin diffusion equation in bulk and using the…

Mesoscale and Nanoscale Physics · Physics 2018-01-08 Tomohiro Taniguchi

We analyze the dynamics of a domain wall in an easy-axis antiferromagnet driven by circularly polarized magnons. Magnons pass through a stationary domain wall without reflection and thus exert no force on it. However, they reverse their…

Strongly Correlated Electrons · Physics 2014-09-10 Se Kwon Kim , Yaroslav Tserkovnyak , Oleg Tchernyshyov

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…

Mesoscale and Nanoscale Physics · Physics 2011-11-28 E. A. Golovatski , M. E. Flatté

We report the observation of the antisymmetric magnetoresistance (MR) in perpendicular magnetized CoTb films with inhomogeneous magnetization distribution driven by gradient magnetic field. By synchronously charactering the domain pattern…

Materials Science · Physics 2021-08-23 Yangtao Su , Yang Meng , Haibin Shi , Li Wang , Xinyu Cao , Ying Zhang , Runwei Li , Hongwu Zhao

We explore the magnetic-field-driven motion of domain walls with different chiralities in thin ferromagnetic films made of Pt/Co/Pt, Au/Co/Pt, and Pt/Co/Au. From the analysis of domain wall dynamics, we extract parameters characterizing the…

Mesoscale and Nanoscale Physics · Physics 2020-11-04 P. Géhanne , S. Rohart , A. Thiaville , V. Jeudy

We report on the controlled switching of domain wall (DW) magnetization in aligned stripe domain structures, stabilized in [Co (0.44 nm)/Pt (0.7 nm)]$_X$ ($X = 48$, 100, 150) multilayers with perpendicular magnetic anisotropy. The switching…

We develop the theory of magnetic domain wall motion in coupled double-layer systems where electrons can hop between the layers giving rise to an antiferromagnetic coupling. We demonstrate that the force from the interlayer coupling drives…

Mesoscale and Nanoscale Physics · Physics 2015-01-26 Henri Saarikoski , Hiroshi Kohno , Christopher H. Marrows , Gen Tatara

Transport through zincblende magnetic semiconductors with magnetic domain walls is studied theoretically. We show that these magnetic domain walls have an intrinsic resistance due to the spin-orbit interaction. The intrinsic resistance is…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Anh Kiet Nguyen , R. V. Shchelushkin , Arne Brataas

We theoretically study the motion of a magnetic domain wall induced by transverse elastic waves in a one-dimensional magnetic wire, which respects both rotational and translational symmetries. By invoking the conservation of the associated…

Mesoscale and Nanoscale Physics · Physics 2016-12-07 Se Kwon Kim , Daniel Hill , Yaroslav Tserkovnyak

The transverse anisotropy constant and the related D\"oring mass density are key parameters of the one-dimensional model to describe the motion of magnetic domain walls. So far, no general framework is available to determine these…

Mesoscale and Nanoscale Physics · Physics 2015-08-12 Felix Büttner , Benjamin Krüger , Stefan Eisebitt , Mathias Kläui

We present a quantitative investigation of magnetic domain wall pinning in thin magnets with perpendicular anisotropy. A self-consistent description exploiting the universal features of the depinning and thermally activated sub-threshold…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 Vincent Jeudy , Rebeca Diaz Pardo , Williams Savero Torres , Sebastian Bustingorry , Alejandro Kolton

A domain wall in a ferromagnetic one-dimensional nanowire experiences current induced motion due to its coupling with the conduction electrons. When the current is not sufficient to drive the domain wall through the wire, or it is confined…

Mesoscale and Nanoscale Physics · Physics 2012-07-13 Nicholas Sedlmayr , Jamal Berakdar

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…

Strongly Correlated Electrons · Physics 2017-07-07 Liang-Juan Chang , Yen-Fu Liu , Ming-Yi Kao , Li-Zai Tsai , Jun-Zhi Liang , Shang-Fan Lee

Domain walls in ferroelectrics exhibit a plethora of phases and functionalities not found in the bulk. The interplay of electrostatic, chemical, topological, and distortive inhomogeneities at the walls can be so complex, however, that this…

Mesoscale and Nanoscale Physics · Physics 2017-02-23 Gabriele De Luca , Marta D. Rossell , Jakob Schaab , Nathalie Viart , Manfred Fiebig , Morgan Trassin

Domain walls in antiferromagnets under a spin-polarized current present dynamical behavior that is not observed in ferromagnets, and it is tunable by the current polarization. Precessional dynamics is obtained for perpendicular spin…

Materials Science · Physics 2026-02-02 George Theodorou , Stavros Komineas

Chiral domain walls in ultrathin perpendicularly magnetised layers have a N\'{e}el structure stabilised by a Dzyaloshinskii-Moriya interaction (DMI) that is generated at the interface between the ferromagnet and a heavy metal. Different…

Use of a spin polarized current for the manipulation of magnetic domain walls in ferromagnetic nanowires has been the subject of intensive research for many years. Recently, due to technological advancements, creating nano-contacts with…

Mesoscale and Nanoscale Physics · Physics 2020-08-10 Hamidreza Kazemi , Sebastian Eggert , Nicholas Sedlmayr

Magnetic sensors based on the magnetoresistance effects have a promising application prospect due to their excellent sensitivity and advantages in terms of the integration. However, competition between higher sensitivity and larger…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Xueying Zhang , Nicolas Vernier , Zhiqiang Cao , Qunwen Leng , Anni Cao , Dafine Ravelosona , Weisheng Zhao

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…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 J. Ohe , M. Yamamoto , T. Ohtsuki , K. Slevin