N ov 2 00 5 Geometrical pinning of magnetic vortices induced by angle deficit on a surface
نویسندگان
چکیده
We study magnetic vortex-like excitations lying on the surface of a circular cone. Its energy appears to be linearly dependent on the conical apperture parameter, besides of being logarithmically divergent with sample size. In addition, we realize a geometrical-like pinning of the vortex, say, it is energetically favourable for it to nucleate around conical apex. Similar effect is also obtained whenever it interacts with a spin vacancy on this geometry. We also pay attention to the problem of the vortex pair and how its dissociation temperature depends upon conical geometry.
منابع مشابه
J ul 2 00 6 Geometrical pinning of magnetic vortices induced by a deficit angle on a surface : anisotropic spins on a conic space background
We study magnetic vortex-like excitations lying on a conic space background. Two types of them are obtained. Their energies appear to be linearly dependent on the conical aperture parameter, besides of being logarithmically divergent with the sample size. In addition, we realize a geometrical-like pinning of the vortex, say, it is energetically favorable for it to nucleate around the conical ap...
متن کاملGeometrical pinning of magnetic vortices induced by a deficit angle on a surface: anisotropic spins on a conic space background
We study magnetic vortex-like excitations lying on a conic space background. Two types of them are obtained. Their energies appear to be linearly dependent on the conical aperture parameter, besides of being logarithmically divergent with the sample size. In addition, we realize a geometrical-like pinning of the vortex, say, it is energetically favorable for it to nucleate around the conical ap...
متن کاملGeometrical pinning of magnetic vortices induced by a deficit angle on a surface: anisotropic spins on a conic space background
We study magnetic vortex-like excitations lying on a conic space background. Two types of them are obtained. Their energies appear to be linearly dependent on the conical aperture parameter, besides of being logarithmically divergent with the sample size. In addition, we realize a geometrical-like pinning of the vortex, say, it is energetically favorable for it to nucleate around the conical ap...
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