Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
UHLÍŘ, V. URBÁNEK, M. HLADÍK, L. SPOUSTA, J. IM, M. FISCHER, P. EIBAGI, N. KAN, J. FULLERTON, E. ŠIKOLA, T.
Originální název
Dynamic switching of the spin circulation in tapered magnetic nanodisks
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
Magnetic vortices are characterized by the sense of in-plane magnetization circulation and by the polarity of the vortex core. With each having two possible states, there are four possible stable magnetization configurations that can be utilized for a multibit memory cell. Dynamic control of vortex core polarity has been demonstrated using both alternating and pulsed magnetic fields and currents. Here, we show controlled dynamic switching of spin circulation in vortices using nanosecond field pulses by imaging the process with full-field soft X-ray transmission microscopy. The dynamic reversal process is controlled by far-from-equilibrium gyrotropic precession of the vortex core, and the reversal is achieved at significantly reduced field amplitudes when compared with static switching. We further show that both the field pulse amplitude and duration required for efficient circulation reversal can be controlled by appropriate selection of the disk geometry.
Klíčová slova
Magnetic Vortices; Dynamic switching; magnetic disks.
Autoři
UHLÍŘ, V.; URBÁNEK, M.; HLADÍK, L.; SPOUSTA, J.; IM, M.; FISCHER, P.; EIBAGI, N.; KAN, J.; FULLERTON, E.; ŠIKOLA, T.
Rok RIV
2013
Vydáno
21. 4. 2013
ISSN
1748-3387
Periodikum
Nature Nanotechnology (print)
Ročník
8
Číslo
5
Stát
Spojené království Velké Británie a Severního Irska
Strany od
341
Strany do
346
Strany počet
6
BibTex
@article{BUT99543, author="Vojtěch {Uhlíř} and Michal {Urbánek} and Lukáš {Hladík} and Jiří {Spousta} and M.-Y. {Im} and P. {Fischer} and N. {Eibagi} and J.J. {Kan} and E.E. {Fullerton} and Tomáš {Šikola}", title="Dynamic switching of the spin circulation in tapered magnetic nanodisks", journal="Nature Nanotechnology (print)", year="2013", volume="8", number="5", pages="341--346", issn="1748-3387" }