Zobrazeno 1 - 10
of 375
pro vyhledávání: '"Fangohr, H"'
Autor:
Twitchett-Harrison, A. C., Loudon, J. C., Pepper, R. A., Birch, M. T., Fangohr, H., Midgley, P. A., Balakrishnan, G., Hatton, P. D.
Skyrmion-containing devices have been proposed as a promising solution for low energy data storage. These devices include racetrack or logic structures and require skyrmions to be confined in regions with dimensions comparable to the size of a single
Externí odkaz:
http://arxiv.org/abs/2104.11517
Autor:
Birch, M. T., Cortés-Ortuño, D., Turnbull, L. A., Wilson, M. N., Groß, F., Träger, N., Laurenson, A., Bukin, N., Moody, S. H., Weigand, M., Schütz, G., Popescu, H., Fan, R., Steadman, P., Verezhak, J. A. T., Balakrishnan, G., Loudon, J. C., Twitchett-Harrison, A. C., Hovorka, O., Fangohr, H., Ogrin, F., Gräfe, J., Hatton, P. D.
Publikováno v:
Nature Communications 11, 1726 (2020)
Magnetic skyrmions are topologically nontrivial particles with a potential application as information elements in future spintronic device architectures. While they are commonly portrayed as two dimensional objects, in reality magnetic skyrmions are
Externí odkaz:
http://arxiv.org/abs/1909.04528
Autor:
Gallardo, R. A., Cortés-Ortuño, D., Schneider, T., Roldán-Molina, A., Ma, Fusheng, Troncoso, R. E., Lenz, K., Fangohr, H., Lindner, J., Landeros, P.
Publikováno v:
Phys. Rev. Lett. 122, 067204 (2019)
Periodically patterned metamaterials are known for exhibiting wave properties similar to the ones observed in electronic band structures in crystal lattices. In particular, periodic ferromagnetic materials are characterized by the presence of bands a
Externí odkaz:
http://arxiv.org/abs/1806.08333
Micromagnetic simulations are used to investigate the effects of different absorbing boundary layers (ABLs) on spin waves (SWs) reflected from the edges of a magnetic nano-structure. We define the conditions that a suitable ABL must fulfill and compa
Externí odkaz:
http://arxiv.org/abs/1706.03325
We have studied the dependence of spin wave dispersion on the characteristics of the mesh used in a finite element micromagnetic simulation. It is shown that the dispersion curve has a cut off at a frequency which is analytically predictable. The fre
Externí odkaz:
http://arxiv.org/abs/1405.4615
Publikováno v:
J. Appl. Phys. 114, 023910 (2013)
We present the possibility of tuning the spin-wave band structure, particularly the bandgaps in a nanoscale magnonic antidot waveguide by varying the shape of the antidots. The effects of changing the shape of the antidots on the spin-wave dispersion
Externí odkaz:
http://arxiv.org/abs/1305.4812
In this article we report on micromagnetic simulations performed on a permalloy nanostructure in presence of a uniform thermal gradient. Our numerical simulations show that heat flow is an effective mean to compensate the damping, and that the gradie
Externí odkaz:
http://arxiv.org/abs/1205.5650
Autor:
Dmytriiev, O., Dvornik, M., Mikhaylovskiy, R. V., Franchin, M., Fangohr, H., Giovannini, L., Montoncello, F., Berkov, D. V., Semenova, E. K., Gorn, N. L., Prabhakar, A., Kruglyak, V. V.
We present a method of calculation of the effective magnetic permeability of magnonic metamaterials containing periodically arranged magnetic inclusions of arbitrary shapes. The spectrum of spin wave modes confined in the inclusions is fully taken in
Externí odkaz:
http://arxiv.org/abs/1203.6116
Autor:
Goncharov, A. V., Zhukov, A. A., Metlushko, V. V., Bordignon, G., Fangohr, H., de Groot, C. H., Unguris, J., Uhlig, W. C., Karapetrov, G., Ilic, B., de Groot, P. A. J.
Magnetization reversal mechanisms and impact of magnetization direction are studied in square arrays of interconnected circular permalloy nanorings using MOKE, local imaging, numerical simulations and transport techniques.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604132
Publikováno v:
Mon.Not.Roy.Astron.Soc. 359 (2005) 493-503
The buoyant rise of hot plasma bubbles inflated by AGN outflows in galaxy clusters can heat the cluster gas and thereby compensate radiative energy losses of this material. Numerical simulations of this effect often show the complete disruption of th
Externí odkaz:
http://arxiv.org/abs/astro-ph/0502162