Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Alexei N. Bogdanov"'
Publikováno v:
Physics Today. 73:44-49
This is a narrative of the basic theoretical ideas of axisymmetric two-dimensional solitons and of their connection to basic experiments on magnetic compounds. A shortened and edited version appeared in Physics Today.
5 Pages, 4 Figures, 1 Box
5 Pages, 4 Figures, 1 Box
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1483e72e7ffddf7fbb70cb2bcbfb35a
https://doi.org/10.1063/pt.3.4431
https://doi.org/10.1063/pt.3.4431
Autor:
Andrey O Leonov, Alexei N Bogdanov
Publikováno v:
New Journal of Physics, Vol 20, Iss 4, p 043017 (2018)
The coupling between angular (twisting) and longitudinal modulations arising near the ordering temperature of noncentrosymmetric ferromagnets strongly influences the structure of skyrmion states and their evolution in an applied magnetic field. In th
Externí odkaz:
https://doaj.org/article/fbbc9890e4034336b7739e8335a5b0ef
Magnetic skyrmions (or vortices) are spatially inhomogeneous spin textures localized in nanoscale cylindrical regions. Topological protection and small size make skyrmions especially attractive for the study of spin topology and technologies wherein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a96965c09f38c9e39f6eccf453e4dfb
http://arxiv.org/abs/2008.00641
http://arxiv.org/abs/2008.00641
Autor:
Andrey O. Leonov, Alexei N. Bogdanov
The coupling between angular (twisting) and longitudinal modulations arising near the ordering temperature of noncentrosymmetric ferromagnets strongly influences the structure of skyrmion states and their evolution in an applied magnetic field. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::366784dc10a75bba41d8d0a740ccbff3
http://arxiv.org/abs/1805.03360
http://arxiv.org/abs/1805.03360
Publikováno v:
Physical Review B. 97
We report the discovery of attractive magnetic skyrmions and their clusters in noncentrosymmetric ferromagnets. These three-dimensional solitons have been predicted to exist in the cone phase of chiral ferromagnets [J. Phys: Condens. Matter 28, 35LT0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0263f50c706255963d6a83cc7f83e17d
https://doi.org/10.1103/physrevb.97.134403
https://doi.org/10.1103/physrevb.97.134403
We investigate the field-induced crossover between two types of isolated skyrmions that exist within the conical phase of cubic helimagnets and orient themselves either along or perpendicular to the field. Such a crossover takes place for the same va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec77d4e13facbc2a364137da25ba42fe
Publikováno v:
Journal of Physics-Condensed Matter, 28(35):ARTN 35LT01. IOP PUBLISHING LTD
We introduce a new class of isolated three-dimensional skyrmion that can occur within the cone phase of chiral magnetic materials. These novel solitonic states consist of an axisymmetric core separated from the host phase by an asymmetric shell. Thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f84f1599989cd32da66141c39a9918a5
https://doi.org/10.1088/0953-8984/28/35/35LT01
https://doi.org/10.1088/0953-8984/28/35/35LT01
Autor:
Roland Wiesendanger, Theodore L. Monchesky, Andrey O. Leonov, Alexei N. Bogdanov, Niklas Romming, André Kubetzka
Publikováno v:
New Journal of Physics, 18:065003. IOP PUBLISHING LTD
Axisymmetric solitonic states (chiral skyrmions) have been predicted theoretically more than two decades ago. However, until recently they have been observed in a form of skyrmionic condensates (hexagonal lattices and other mesophases). In this paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97cbcdc1a5b3ec2a60c40d12ff084e04
https://research.rug.nl/en/publications/e30a6a78-f058-4264-b22e-1389d8b02b56
https://research.rug.nl/en/publications/e30a6a78-f058-4264-b22e-1389d8b02b56
Publikováno v:
Technical Physics Letters. 33:1028-1031
Equations describing the equilibrium parameters of stripe domains in nanomagnetic multilayers have been obtained by means of an integral transformation of the magnetostatic energy expression. These equations are applied to the investigation of polydo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53f864aea2a3baf893f1410ca3879f78
https://doi.org/10.1134/s1063785007120139
https://doi.org/10.1134/s1063785007120139
Publikováno v:
Journal of Magnetism and Magnetic Materials. 316:225-228
The competition between surface/interface and intrinsic anisotropies yields a number of specific reorientation effects and strongly influences magnetization processes in diluted magnetic semiconductors as (Ga,Mn)As and (In,Mn)As. We develop a phenome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e67d06a625b6f1661080e80e47b320c3
https://doi.org/10.1016/j.jmmm.2007.02.089
https://doi.org/10.1016/j.jmmm.2007.02.089