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We studied the static and dynamic domain wall solutions of spinor Bose-Einstein condensates trapped in an optical lattice. The single and double domain wall solutions are constructed analytically. Our results show that the magnetic field…

Other Condensed Matter · Physics 2010-12-30 Zai-Dong Li , Qiu-Yan Li , Peng-Bin He , J. -Q. Liang , W. M. Liu , Guangsheng Fu

Shifting electrically a magnetic domain wall (DW) by the spin transfer mechanism is one of the future ways foreseen for the switching of spintronic memories or registers. The classical geometries where the current is injected in the plane…

We demonstrate deterministic control of dipole-field-stabilized skyrmions by means of spin-orbit torques arising from heavy transition-metal seed layers. Experiments are performed on amorphous Fe/Gd multilayers that are patterned into wires…

Materials Science · Physics 2018-10-17 Sergio A. Montoya , Robert Tolley , Ian Gilbert , Soong-Geun Je , Mi-Young Im , Eric E. Fullerton

The interaction between the propagating spin waves and the current driven motion of a transverse domain wall in magnetic nanowires is studied by micromagnetic simulations. If the speed of domain walls due to current induced spin transfer…

Materials Science · Physics 2011-03-25 Mahdi Jamali , Hyunsoo Yang , Kyung-Jin Lee

The motion of magnetic domain walls in ultrathin magnetic heterostructures driven by current via the spin Hall torque is described. We show results from perpendicularly magnetized CoFeB|MgO heterostructures with various heavy metal…

Materials Science · Physics 2015-03-26 Jacob Torrejon , Masamitsu Hayashi

We theoretically examine a cross effect of magnetic field and charge current on antiferromagnetic domain wall dynamics. Since antiferromagnetic materials are largely insensitive to external magnetic fields in general, charge current has…

Mesoscale and Nanoscale Physics · Physics 2017-08-16 Yuta Yamane , Olena Gomonay , Hristo Velkov , Jairo Sinova

Two types of domain walls exist in magnetically soft cylindrical nanowires: the transverse-vortex wall (TVW) and the Bloch-point wall (BPW). The latter is expected to prevent the usual Walker breakdown, and thus enable high domain wall…

Mesoscale and Nanoscale Physics · Physics 2021-02-24 A. De Riz , J. Hurst , M. Schöbitz , C. Thirion , J. Bachmann , J. C. Toussaint , O. Fruchart , D. Gusakova

Spinful superfluids of ultracold atoms are ideal for investigating the intrinsic properties of spin current and texture because they are realized in an isolated, nondissipative system free from impurities, dislocations, and thermal…

Quantum Gases · Physics 2022-02-09 Hiromitsu Takeuchi

The domain wall motion in a magnetic nanowire is examined theoretically in the regime where the domain wall driving force is weak and its competition against disorders is assisted by thermal agitations. Two types of driving forces are…

Mesoscale and Nanoscale Physics · Physics 2011-10-06 Jisu Ryu , Sug-Bong Choe , Hyun-Woo Lee

Spintronic devices, whose operation is based on the motion of a magnetic domain wall (DW), have been proposed recently. If a DW could be driven directly by flowing an electric current instead of a magnetic field, the performance and…

Materials Science · Physics 2009-11-10 Akinobu Yamaguchi , Teruo Ono , Saburo Nasu , Kousaku Miyake , Ko Mibu , Teruya Shinjo

Current-induced spin torque and magnetization dynamics in the presence of spin Hall effect in magnetic textures is studied theoretically. The local deviation of the charge current gives rise to a current-induced spin torque of the form…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 Aurelien Manchon , Kyung-Jin Lee

In order to address many of the challenges and bottlenecks currently experienced by traditional charge based technologies, various alternatives are being actively explored to provide potential solutions of device miniaturization and scaling…

Mesoscale and Nanoscale Physics · Physics 2019-01-03 Xiangjun Xing , Philip W. T. Pong , Yan Zhou

Spin-orbitronics, based on both spin and orbital angular momentum, presents a promising pathway for energy-efficient memory and logic devices. Recent studies have demonstrated the emergence of orbital currents in light transition metals…

Domain-wall magnetoresistance and low-frequency noise have been studied in epitaxial antiferromagnetically-coupled [Fe/Cr(001)]_10 multilayers and ferromagnetic Co line structures as a function of DC current intensity. In [Fe/Cr(001)]_10…

Materials Science · Physics 2008-07-17 D. Herranz , R. Guerrero , R. Villar , F. G. Aliev , A. C. Swaving , R. A. Duine , C. van Haesendonck , I. Vavra

Theoretical studies dealing with current-driven domain wall dynamics in ferrimagnetic alloys and, by extension, other antiferromagnetically coupled systems as some multilayers, are here presented. The analysis has been made by means of…

Applied Physics · Physics 2019-07-16 Eduardo Martínez , Víctor Raposo , Óscar Alejos

Magnetic domain walls are topological solitons whose internal structure is set by competing energies which sculpt them. In common ferromagnets, domain walls are known to be of either Bloch or N\'eel types. Little is established in the case…

Magnetic domain walls are objects whose dynamics is inseparably connected to their structure. In this work we investigate magnetic bilayers, which are engineered such that a coupled pair of domain walls, one in each layer, is stabilized by…

Mesoscale and Nanoscale Physics · Physics 2018-06-06 Aleš Hrabec , Viola Křižáková , Stefania Pizzini , João Sampaio , André Thiaville , Stanislas Rohart , Jan Vogel

We investigated how the dynamics of a domain wall are affected by the presence of spin density waves in a ferromagnetic wire. Domain walls and other scattering centres can cause coherent spin density waves to propagate through a wire when a…

Mesoscale and Nanoscale Physics · Physics 2011-07-19 Nicholas Sedlmayr , Vitalii Dugaev , Jamal Berakdar

We present experimental results on the displacement of a domain wall by injection of a dc current through the wall. The samples are 1 micron wide long stripes of a CoO/Co/Cu/NiFe classical spin valve structure. The stripes have been…

Materials Science · Physics 2009-11-07 J. Grollier , D. Lacour , V. Cros , A. Hamzic , A. Vaures , A. Fert , D. Adam , G. Faini

We report that by measuring current-induced hysteresis loop shift versus in-plane bias magnetic field, the spin Hall effect (SHE) contribution of the current-induced effective field per current density, $\chi_{SHE}$, can be estimated for Pt…

Materials Science · Physics 2018-01-12 Chi-Feng Pai , Maxwell Mann , Aik Jun Tan , Geoffrey S. D. Beach
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