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of 29
pro vyhledávání: '"Novais, E. R. P."'
Skyrmions are emerging topological spin structures that are potentially revolutionary for future data storage and spintronics applications. The existence and stability of skyrmions in magnetic materials is usually associated to the presence of the Dz
Externí odkaz:
http://arxiv.org/abs/1709.07559
Magnetic vortex cores exhibit a gyrotropic motion, and may reach a critical velocity, at which point they invert their z-component of the magnetization. We performed micromagnetic simulations to describe this vortex core polarity reversal in magnetic
Externí odkaz:
http://arxiv.org/abs/1510.08783
Interacting magnetic nanoobjects constitute one key component for many proposed spintronic devices, from microwave nano-oscillators to magnetic memory elements. For this reason, the mechanism of this interaction and its dependence with distance $d$ b
Externí odkaz:
http://arxiv.org/abs/1312.6663
The magnetic vortex structure, that is present in several nanoscopic systems, is stable and can be manipulated through the application of a magnetic field or a spin polarized current. The size and shape of the core are strongly affected by the anisot
Externí odkaz:
http://arxiv.org/abs/1305.0942
We propose the use of the gyrotropic motion of vortex cores in nanomagnets to produce a magnetic echo, analogous to the spin echo in NMR. This echo occurs when an array of nanomagnets, e.g., nanodisks, is magnetized with an in-plane (xy) field, and a
Externí odkaz:
http://arxiv.org/abs/1201.3553
Autor:
Novais, E. R. P., Landeros, P., Barbosa, A. G. S., Martins, M. D., Garcia, F., Guimarães, A. P.
Nanodots with magnetic vortices have many potential applications, such as magnetic memories (VRAMs) and spin transfer nano-oscillators (STNOs). Adding a perpendicular anisotropy term to the magnetic energy of the nanodot it becomes possible to tune t
Externí odkaz:
http://arxiv.org/abs/1105.1813
Autor:
Novais, E. R. P., Guimarães, A. P.
Magnetic disks or dots of soft magnetic material of sub-micron dimensions may have as the lowest energy magnetic configuration a single-domain structure, with magnetization either perpendicular of parallel to the plane, or else may form magnetic vort
Externí odkaz:
http://arxiv.org/abs/0909.5686
Akademický článek
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Publikováno v:
Journal of Applied Physics; 3/7/2016, Vol. 119 Issue 9, p093906-1-093906-6, 6p, 7 Graphs
Publikováno v:
Journal of Applied Physics; 2014, Vol. 115 Issue 20, p203902-1-203902-6, 6p, 1 Diagram, 4 Graphs