We show that the curvature of the underlying surface leads to a coupling between the localized out-of-surface component of the vortex with its delocalized in-surface structure, i.e., polarity-chirality coupling. Phys. Rev. B 85, 144433 (2012), 10.1103/PhysRevB.85.144433, PDF.
Source code of slasi module for simulations consists of the next files: alltypes.h: definition of structures and global variables used in all another files. clargs.c/clargs.h: processing of command-line arguments. constants.h: some constants. fields.c/fields.h: functions for magnetic field processing: initialization (reducing field parameters) and calculation of field for given time and…
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…
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…
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…