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We predict a mechanism to controllably manipulate domain walls in kagome antiferromagnets via a single linearly polarized spin-wave source. We show by means of atomistic spin dynamics simulations of antiferromagnets with kagome structure…

Mesoscale and Nanoscale Physics · Physics 2021-10-14 Davi R. Rodrigues , Akshaykumar Salimath , Karin Everschor-Sitte , Kjetil M. D. Hals

Spin Hall effect, an electric generation of spin current, allows for efficient control of magnetization. Recent theory revealed that orbital Hall effect creates orbital current, which can be much larger than spin Hall-induced spin current.…

The purpose of the research is the construction of the analytical model for description of spin-polarized current-driven ferromagnetic domain wall motion with a skyrmion building block. The dependence of velocity of ferromagnetic domain…

Mesoscale and Nanoscale Physics · Physics 2020-03-30 O. Gorobets , Yu. Gorobets , I. Tiukavkina , R. Gerasimenko

Recent studies have revealed that domain walls in magnetic nanostructures can serve as compact, energy-efficient spin-wave waveguides for building magnonic devices that are considered promising candidates for overcoming the challenges and…

Mesoscale and Nanoscale Physics · Physics 2017-05-31 Xiangjun Xing , Philip W. T. Pong , J. Åkerman , Yan Zhou

Recent advances in the understanding of spin orbital effects in ultrathin magnetic heterostructures have opened new paradigms to control magnetic moments electrically. The Dzyaloshinskii-Moriya interaction (DMI) is said to play a key role…

Mesoscale and Nanoscale Physics · Physics 2013-08-09 Jacob Torrejon , Junyeon Kim , Jaivardhan Sinha , Michihiko Yamanouchi , Seiji Mitani , Masamitsu Hayashi , Hideo Ohno

We demonstrate movement of a head-to-head domain wall through a magnetic nanowire simply by passing an electrical current through the domain wall and without any external magnetic field applied. The effect depends on the sense and magnitude…

Materials Science · Physics 2016-08-31 Nicolas Vernier , Dan A. Allwood , Del Atkinson , Michael D. Cooke , Russell P. Cowburn

We show that the interaction between a superconducting order parameter and the magnetic moment of an atomic cluster in a two-dimensional s-wave superconductor with Rashba spin-orbit coupling generates magnetic anisotropy that can be…

Mesoscale and Nanoscale Physics · Physics 2017-10-24 Eugene M. Chudnovsky

The time it takes to accelerate an object from zero to a given velocity depends on the applied force and the environment. If the force ceases, it takes exactly the same time to completely decelerate. A magnetic domain wall (DW) is a…

Mesoscale and Nanoscale Physics · Physics 2016-11-29 Jacob Torrejon , Eduardo Martinez , Masamitsu Hayashi

Spin transfer torques allow the electrical manipulation of the magnetization at room temperature, which is desirable in spintronic devices such as spin transfer torque memories. When combined with spin-orbit coupling, they give rise to…

We study the effects of Rashba spin-orbit coupling on the spin torque induced by spin waves, which are the plane wave dynamics of magnetization. The spin torque is derived from linear response theory, and we calculate the dynamic spin…

Materials Science · Physics 2015-12-21 Nobuyuki Umetsu , Daisuke Miura , Akimasa Sakuma

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 develop a general scheme of deriving boundary conditions for spin-charge coupled transport in disordered systems with spin-orbit interactions. To illustrate the application of the method, we explicitly derive boundary conditions for spin…

Materials Science · Physics 2009-11-11 Victor Galitski , A. A. Burkov , S. Das Sarma

The growing demand for storage, due to big data applications, cannot be met by hard disk drives. Domain wall (DW) memory devices such as racetrack memory offer an alternative route to achieve high capacity storage. In DW memory, control of…

Applied Physics · Physics 2020-02-19 H. Mohammed , S. Al Risi , T. L. Jin3 J. Kosel , S. N. Piramanayagam , R. Sbiaa

We investigate the efficiency of charge-to-spin conversion in two-dimensional Rashba altermagnets, a class of materials that merge characteristics of both ferromagnets and antiferromagnets. Utilizing quantum linear response theory, we…

Mesoscale and Nanoscale Physics · Physics 2024-09-11 Weiwei Chen , Longhai Zeng , W. Zhu

We calculate the charge current in a metallic ferromagnet to first order in the time derivative of the magnetization direction. Irrespective of the microscopic details, the result can be expressed in terms of the conductivities of the…

Mesoscale and Nanoscale Physics · Physics 2008-01-09 R. A. Duine

We study the motion of several types of domain wall profiles in spin-orbit coupled magnetic nanowires and also the influence of spin-orbit interaction on the ferromagnetic resonance of uniform magnetic films. We extend previous studies by…

Mesoscale and Nanoscale Physics · Physics 2013-08-28 Jacob Linder , Mohammad Alidoust

We report the experimental observation of the spin-Hall effect in a two-dimensional (2D) hole system with Rashba spin-orbit coupling. The 2D hole layer is a part of a p-n junction light-emitting diode with a specially designed co-planar…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Joerg Wunderlich , Bernd Kaestner , Jairo Sinova , Tomas Jungwirth

Many future concepts for spintronic devices are based on the current-driven motion of magnetic domain walls through nanowires. Consequently a thorough understanding of the domain wall mobility is required. However, the magnitude of the…

Mesoscale and Nanoscale Physics · Physics 2020-12-24 J. Leliaert , B. Van de Wiele , A. Vansteenkiste , L. Laurson , G. Durin , L. Dupré , B. Van Waeyenberge

Quantum wires with periodic local Rashba spin-orbit couplings are proposed for a higher performance of spin field-effect transistor. Fano-Rashba quantum interference due to the spin-dependent modulated structure gives rise to a broad energy…

Mesoscale and Nanoscale Physics · Physics 2008-12-20 L. Wang , K. Shen , S. Y. Cho , M. W. Wu

We calculate the spin Hall conductivity driven by Rashba spin-orbit interaction in $p$-type two-dimensional semiconductors in the presence of a perpendicular magnetic field. For a highly confined quantum well, the system is described by a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 M. Zarea , Sergio E. Ulloa