publication . Article . 2014

Controlling vortex chirality and polarity by geometry in magnetic nanodots

Agramunt Puig, Sebastià; Valle Benedí, Nuria del; Navau Ros, Carles; Sánchez Moreno, Álvaro;
Open Access
  • Published: 06 Jan 2014 Journal: Applied Physics Letters, volume 104, page 12,407 (issn: 0003-6951, eissn: 1077-3118, Copyright policy)
  • Publisher: AIP Publishing
  • Country: Spain
Abstract
The independent control of both vortex chirality and polarity is a significant challenge in magnetic devices based on nano-sized magnetic vortex structures. By micromagnetic simulations here, we show that in soft ferromagnetic nanodots with an adequate modulated thickness, the desired combination of chirality and polarity can be achieved just by changing the direction of the in-plane applied magnetic field. Despite the complex behavior, the vortex chirality and polarity control can be summarized in two simple rules that can thus become a useful tool for designing magnetic devices.
Subjects
arXiv: Computer Science::Databases
free text keywords: Chiral symmetries, Magnetic fields, Nucleation, Saturation moments, Physics and Astronomy (miscellaneous), Physics, Ferromagnetism, Magnetic vortex, Micromagnetics, Magnetic field, Magnetic structure, Vortex, Condensed matter physics, Nanodot, Polarity (international relations)
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publication . Article . 2014

Controlling vortex chirality and polarity by geometry in magnetic nanodots

Agramunt Puig, Sebastià; Valle Benedí, Nuria del; Navau Ros, Carles; Sánchez Moreno, Álvaro;