Spin-Wave Eigenmodes of Dzyaloshinskii Domain Walls

Spin Hall torque magnetometry of Dzyaloshinskii domain walls

Satoru Emori,1 Eduardo Martinez,2 Kyung-Jin Lee,3,4 Hyun-Woo Lee,5 Uwe Bauer,1 Sung-Min Ahn,1 Parnika Agrawal,1 David C. Bono,1 and Geoffrey S. D. Beach1,* 1Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 2Departmento Fı́sica Aplicada, Universidad de Salamanca, Plaza de los Caidos s/n E-38008, Salamanca, Spain 3Departmen...

Quantum Dynamics of Spin Wave Propagation through Domain Walls

Through numerical solution of the time-dependent Schrödinger equation, we demonstrate that magnetic chains with uniaxial anisotropy support stable structures, separating ferromagnetic domains of opposite magnetization. These structures, domain walls in a quantum system, are shown to remain stable if they interact with a spin wave. We find that a domain wall transmits the longitudinal component ...

Velocity asymmetry of Dzyaloshinskii domain walls in the creep and flow regimes.

We have carried out measurements of domain wall dynamics in a Pt/Co/GdOx(t) wedge sample with perpendicular magnetic anisotropy. When driven by an easy-axis field Hz in the presence of an in-plane field Hx, the domain wall propagation is different along [Formula: see text]x, as expected for samples presenting Dzyaloshinskii-Moriya (DMI) interaction. In the creep regime, the sign and the value o...

Tunable short-wavelength spin wave excitation from pinned magnetic domain walls

Miniaturization of magnonic devices for wave-like computing requires emission of short-wavelength spin waves, a key feature that cannot be achieved with microwave antennas. In this paper, we propose a tunable source of short-wavelength spin waves based on highly localized and strongly pinned magnetic domain walls in ferroelectric-ferromagnetic bilayers. When driven into oscillation by a microwa...

Analyzing Creep Mobility of Dzyaloshinskii Domain Walls with an Effective Elastic Band Model