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Spin-orbitronics and single pulse all-optical switching (AOS) of magnetization are two major successes of the rapidly advancing field of nanomagnetism in recent years, with high potential for enabling novel, fast and energy-efficient memory…

Mesoscale and Nanoscale Physics · Physics 2022-04-26 Pingzhi Li , Thomas J. Kools , Reinoud Lavrijsen , Bert Koopmans

We present the theory of the spin motive force in antiferromagnets. We consider a one-dimensional antiferromagnetic domain wall strongly coupled with conduction electrons via an exchange interaction. We carry out a unitary transformation…

Mesoscale and Nanoscale Physics · Physics 2015-02-16 Akira Okabayashi , Takao Morinari

The interplay of charge and spin orders lies at the heart of correlated electron physics and plays a critical role in the emergence of unconventional quantum phases. Kagome magnets provide a particularly promising platform to investigate…

Strongly Correlated Electrons · Physics 2025-10-07 Zihao Huang , Chenchao Xu , Yande Que , Yi Liu , Ranjith Shivajirao , Zheng Jue Tong , Amit Kumar , Chao Cao , Guang-Han Cao , Hong-Jun Gao , Bent Weber

We consider theoretically the effect of an inhomogeneous magnetoelectric coupling on the magnon-induced dynamics of a ferromagnet. The magnon-mediated magnetoelectric torque affects both the homogeneous magnetization and magnon-driven…

Mesoscale and Nanoscale Physics · Physics 2016-08-25 Vetle Risinggård , Iryna Kulagina , Jacob Linder

We theoretically study the dynamics of ferrimagnetic domain walls in the presence of Dzyaloshinskii-Moriya interaction. We find that an application of a DC magnetic field can induce terahertz spin-wave emission by driving ferrimagnetic…

Using micromagnetic simulations, we have investigated spin dynamics in a spin-valve bi-layer in the presence of a thermal gradient. The direction and the intensity of the gradient allow to excite the spin wave modes of each layer…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Simone Borlenghi , Weiwei Wang , Hans Fangohr , Lars Bergqvist , Anna Delin

We demonstrate numerically the ability to displace a magnetic domain wall by a remote spin current injection. We consider a long and narrow magnetic nanostripe with a single domain wall (DW). The spin-polarized current is injected…

We present a theoretical formalism to address the dynamics of textured, noncolliear antiferromagnets subject to spin current injection. We derive sine-Gordon type equations of motion for the antiferromagnets, which are applicable to…

Mesoscale and Nanoscale Physics · Physics 2019-08-21 Yuta Yamane , Olena Gomonay , Jairo Sinova

The recent experimental demonstration of spin-polarized supercurrents offer a venue for establishment of a superconducting analogue to conventional spintronics. Whereas domain wall motion in purely magnetic structures is a well-studied…

Superconductivity · Physics 2015-06-18 Jacob Linder , Klaus Halterman

We study photoinduced dynamics triggered by an inhomogeneity due to competition between charge density waves (CDWs) and superconductivity. As a simple example, we consider the superconducting (SC) interface between two CDW domains with…

Superconductivity · Physics 2023-01-31 Yukihiro Matsubayashi , Yusuke Masaki , Hiroaki Matsueda

Antiferromagnetic materials are outstanding candidates for next generation spintronic applications, because their ultrafast spin dynamics makes it possible to realize several orders of magnitude higher-speed devices than conventional…

We investigate magnetic domain wall (MDW) dynamics induced by applied electric fields in ferromagnetic-ferroelectric thin-film heterostructures. In contrast to conventional driving mechanisms where MDW motion is induced directly by magnetic…

Materials Science · Physics 2014-01-17 Ben Van de Wiele , Lasse Laurson , Kévin Franke , Sebastiaan van Dijken

The emergence of two-dimensional (2D) layered magnetic materials has opened an exciting playground for both fundamental studies of magnetism in 2D and explorations of spinbased applications. Remarkable properties, including spin filtering…

Mesoscale and Nanoscale Physics · Physics 2021-02-02 Xiao-Xiao Zhang , Lizhong Li , Daniel Weber , Joshua Goldberger , Kin Fai Mak , Jie Shan

Magnetic skyrmions, as a whirling spin texture with axisymmetry, cannot be propelled by a uniform magnetic field. Therefore, reported skyrmion motions have been induced using other sorts of stimuli; typically, electric currents in magnetic…

Mesoscale and Nanoscale Physics · Physics 2022-10-18 Xiangjun Xing , Yan Zhou

We study the problem of controlling spin waves propagation through an antiferromagnet/ferromagnet interface via tuning material parameters. It is done by introducing the degree of sublattice noncompensation of antiferromagnet (DSNA), which…

Mesoscale and Nanoscale Physics · Physics 2021-12-30 Oksana Busel , Oksana Gorobets , Oleg A. Tretiakov

A domain wall (DW) in a nanowire can propagate under a longitudinal magnetic field by emitting spin waves (SWs). We numerically investigated the properties of SWs emitted by the DW motion, such as frequency and wavenumber, and their…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 X. S. Wang , X. R. Wang

We explore the possibility of exciting spin waves in insulating antiferromagnetic films by injecting spin current at the surface. We analyze both magnetically compensated and uncompensated interfaces. We find that the spin current induced…

Mesoscale and Nanoscale Physics · Physics 2015-10-22 Matthew W. Daniels , Wei Guo , G. Malcolm Stocks , Di Xiao , Jiang Xiao

Racetrack memory based on magnetic domain walls (DWs) motion exhibits advantages of small volume and high reading speed. When compared to current-induced DW motion, voltage-induced DW motion exhibits lower dissipation. On the other hand,…

Applied Physics · Physics 2020-06-24 Fa Chen , Zhendong Zhang , Wei Luo , Xiaofei Yang , Long You , Yue Zhang

The shape instability of magnetic domain walls under current is investigated in a ferromagnetic (Ga,Mn)(As,P) film with perpendicular anisotropy. Domain wall motion is driven by the spin transfer torque mechanism. A current density gradient…

Using neutrons and x-rays we show the topological kagome antiferromagnet Mn$_3$Sn for $T<285$~K forms a homogeneous spin and charge ordered state comprising a longitudinally polarized spin density wave (SDW) with wavevector…

Strongly Correlated Electrons · Physics 2024-07-23 Y. Chen , J. Gaudet , G. G. Marcus , T. Nomoto , T. Chen , T. Tomita , M. Ikhlas , H. S. Suzuki , Y. Zhao , W. C. Chen , J. Strempfer , R. Arita , S. Nakatsuji , C. Broholm