Skyrmion dynamics in a chiral magnet driven by periodically varying spin currents*
نویسندگان
چکیده
منابع مشابه
Skyrmion lattice in a chiral magnet.
Skyrmions represent topologically stable field configurations with particle-like properties. We used neutron scattering to observe the spontaneous formation of a two-dimensional lattice of skyrmion lines, a type of magnetic vortex, in the chiral itinerant-electron magnet MnSi. The skyrmion lattice stabilizes at the border between paramagnetism and long-range helimagnetic order perpendicular to ...
متن کاملSpin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy
Magnetic skyrmions are topologically protected spin textures with attractive properties suitable for high-density and low-power spintronic device applications. Much effort has been dedicated to understanding the dynamical behaviours of the magnetic skyrmions. However, experimental observation of the ultrafast dynamics of this chiral magnetic texture in real space, which is the hallmark of its q...
متن کاملac current generation in chiral magnetic insulators and Skyrmion motion induced by the spin Seebeck effect.
We show that a temperature gradient induces an ac electric current in multiferroic insulators when the sample is embedded in a circuit. We also show that a thermal gradient can be used to move magnetic Skyrmions in insulating chiral magnets: the induced magnon flow from the hot to the cold region drives the Skyrmions in the opposite direction via a magnonic spin transfer torque. Both results ar...
متن کاملLow spin wave damping in the insulating chiral magnet Cu2OSeO3
I. Stasinopoulos, S. Weichselbaumer, A. Bauer, J. Waizner, H. Berger, S. Maendl, M. Garst, 5 C. Pfleiderer, and D. Grundler ∗ Physik Department E10, Technische Universität München, D-85748 Garching, Germany Physik Department E51, Technische Universität München, D-85748 Garching, Germany Institute for Theoretical Physics, Universität zu Köln, D-50937 Köln, Germany Institut de Physique de la Mati...
متن کاملFractal Spectrum of a Quasi - Periodically Driven Spin System
We numerically perform a spectral analysis of a quasi-periodically driven spin 1/2 system, the spectrum of which is Singular Continuous. We compute fractal dimensions of spectral measures and discuss their connections with the time behaviour of various dynamical quantities, such as the moments of the distribution of the wave packet. Our data suggest a close similarity between the information di...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal B
سال: 2016
ISSN: 1434-6028,1434-6036
DOI: 10.1140/epjb/e2016-70467-9