Bloch Point Structure in a Magnetic Nanosphere

Authors: Oleksandr V. Pylypovskyi, Denis D. Sheka, Yuri Gaididei Publication: Phys. Rev. B 85, 224401 (2012), 10.1103/PhysRevB.85.224401 Comments: 8 pages, 7 figures arXiv: http://arxiv.org/abs/1112.2413 The micromagnetic singularity, the so–called Bloch point, can form a metastable state in the nanosphere. We classify possible types of Bloch points and derive analytically the…

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Controlled vortex core switching in a magnetic nanodisk by a rotating field

Authors: Volodymyr P. Kravchuk, Denis D. Sheka, Yuri Gaididei, Franz G. Mertens Publication: J. Appl. Phys. 101, 043908 (2007), 10.1063/1.2770819 Comments: 5 pages, 5 figures arXiv: http://arxiv.org/abs/0705.2046 The switching process of the vortex core in a Permalloy nanodisk affected by a rotating magnetic field is studied theoretically. A detailed description of magnetization…

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Vortex polarity switching by a spin-polarized current

Authors: Jean-Guy Caputo, Yuri Gaididei, Franz G. Mertens, Denis D. Sheka, Publication: Phys. Rev. Lett. 98, 056604 (2007), 10.1103/PhysRevLett.98.056604 Comments: 4 pages, 3 figures arXiv: http://arxiv.org/abs/cond-mat/0607362 The spin-transfer effect is investigated for the vortex state of a magnetic nanodot. A spin current is shown to act similarly to an effective magnetic field…

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