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of 49
pro vyhledávání: '"Andrey O. Leonov"'
Autor:
Andrey O. Leonov
Publikováno v:
Magnetism, Vol 4, Iss 2, Pp 91-103 (2024)
The structure of skyrmion and spiral solutions, investigated within the phenomenological Dzyaloshinskii model of chiral magnets near the ordering temperatures, is characterized by the strong interplay between longitudinal and angular order parameters
Externí odkaz:
https://doaj.org/article/02d8b4d047f74e2ab0cc07b73325168a
Autor:
Andrey O. Leonov
Publikováno v:
Magnetism, Vol 3, Iss 4, Pp 297-307 (2023)
Magnetic hopfions are three-dimensional topological solitons embedded into a homogeneously magnetized background. The internal structure of hopfions is distinguished by the linked preimages—closed loops with a single orientation of the magnetizatio
Externí odkaz:
https://doaj.org/article/801800c2a5e14b56af8d2f38dd49b7f6
Autor:
Natsuki Mukai, Andrey O. Leonov
Publikováno v:
Nanomaterials, Vol 14, Iss 6, p 504 (2024)
We re-examine the internal structure of bimerons, which are stabilized in easy-plane chiral magnets and represent coupled states of two merons with the same topological charge |1/2| but with opposite vorticity and the polarity. We find that, in addit
Externí odkaz:
https://doaj.org/article/9972dc41740e431e8977216599960b3e
Autor:
Andrey O. Leonov, Catherine Pappas
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
We present a systematic study of tilted spiral states obtained theoretically within the classical Dzyaloshinskii model for magnetic states in cubic non-centrosymmetric ferromagnets. Such tilted spirals are shown to stabilize under the competing effec
Externí odkaz:
https://doaj.org/article/bbe6ca347cb044aaa1e41287b841540c
Autor:
Takayuki Shigenaga, Andrey O. Leonov
Publikováno v:
Nanomaterials, Vol 13, Iss 14, p 2073 (2023)
The skyrmion Hall effect, which is regarded as a significant hurdle for skyrmion implementation in thin-film racetrack devices, is theoretically shown to be suppressed in wedge-shaped nanostructures of cubic helimagnets. Under an applied electric cur
Externí odkaz:
https://doaj.org/article/9674bee729bb421787ae62c2f3b70800
Autor:
Andrey O. Leonov, Ulrich K. Rößler
Publikováno v:
Nanomaterials, Vol 13, Iss 5, p 891 (2023)
Isolated chiral skyrmions are investigated within the phenomenological Dzyaloshinskii model near the ordering temperatures of quasi-two-dimensional chiral magnets with Cnv symmetry and three-dimensional cubic helimagnets. In the former case, isolated
Externí odkaz:
https://doaj.org/article/d1acf84dac604e01833a4bdc30efc7d7
Autor:
Natsuki Mukai, Andrey O. Leonov
Publikováno v:
Physical Review B. 106
Autor:
Andrey O. Leonov
Publikováno v:
Physical Review B. 105
Autor:
Marc Scheffler, Hans-Albrecht Krug von Nidda, István Kézsmárki, Björn Miksch, B. Szigeti, N. Büttgen, D. Ehlers, Thomas Gimpel, Andrey O. Leonov, Markus Prinz-Zwick, Dirk Grundler, Vladimir Tsurkan, I. Stasinopoulos
Magnetic resonance techniques at nuclei and electrons are applied to characterize the electronic structure and collective magnetic excitations throughout the magnetic phase diagrams of the lacunar spinels GaV4S8 and GaV4Se8 showing cycloidal, Néel-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0feead4ac389c9e0accf315f01f5f033
https://opus.bibliothek.uni-augsburg.de/opus4/files/90629/90629.pdf
https://opus.bibliothek.uni-augsburg.de/opus4/files/90629/90629.pdf
Autor:
Andrey O. Leonov
Publikováno v:
Physical review. E. 104(4-1)
Existence of topological localized states (skyrmions and torons) and the mechanism of their condensation into modulated states are the ruling principles of condensed matter systems, such as chiral nematic liquid crystals (CLCs) and chiral magnets (Ch