2007/03/31 by G. S. Milagre, G.S. Milagre, W. A. Moura-Melo +1 · 1 citation
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #Condensed matter physics #Geomagnetism and Paleomagnetism Studies #Meteorology #Nuclear physics #Physics #Quantum electrodynamics #Theoretical and Computational Physics #Vortex #cond-mat.str-el
paper · pdf · doi:10.1016/j.physleta.2007.04.002
published as Phys. Lett. A 368 (2007) 155-163 · 15 pages, 8 .eps figures, typed in tex. Version accepted in Physics Letters A (2007), please see DOI #
openalex publication_date 2007/04/05 · arxiv created 2007/04/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study magnetic vortex-like solutions lying on the spherical surface. The simplest cylindrically symmetric vortex presents two cores (instead of one, like in open surfaces) with same charge, so repealing each other. However, the net vorticity is computed to vanish in accordance with Gauss theorem. We also address the problem of a flat plane in which a conical, a pseudospherical and a hemispherical segments were incorporated. In this case, if we allow the vortex to move without appreciable deformation in this support, then it is attracted by the conical apex and by the pseudosphere as well, while it is repealed by the hemisphere. This suggests that such surfaces could be viewed as pinning and depinning geometries for those excitations. Spherical harmonics coreless solutions are discussed within some details.