The stability of 3D skyrmions under mechanical stress studied via Monte Carlo calculations

Autor: Sahbi El Hog, Fumitake Kato, Satoshi Hongo, Hiroshi Koibuchi, Gildas Diguet, Tetsuya Uchimoto, Hung T. Diep

Publikováno v: Results in Physics, Vol 38, Iss , Pp 105578- (2022)

Using Monte Carlo (MC) simulations, we study the skyrmion stability/instability as a response to uniaxial mechanical stresses. Skyrmions emerge in chiral magnetic materials as a stable spin configuration under external magnetic field B→with the com

Externí odkaz: https://doaj.org/article/fe33ee46e8654ea088036c798d6c498c

Orientation Asymmetric Surface Model for Membranes: Finsler Geometry Modeling

Autor: Evgenii Proutorov, Hiroshi Koibuchi

Publikováno v: Axioms, Vol 6, Iss 2, p 10 (2017)

We study triangulated surface models with nontrivial surface metrices for membranes. The surface model is defined by a mapping r from a two-dimensional parameter space M to the three-dimensional Euclidean space R 3 . The metric variable g a b , which

Externí odkaz: https://doaj.org/article/92483ff9c3354c2884a1cbba63f42c00

Skyrmions on 2D elastic surfaces with fixed boundary frame

Autor: Hiroshi Koibuchi, Sahbi El Hog, Hung T. Diep, Fumitake Kato

Publikováno v: Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, Elsevier, 2020, 498, pp.166095. ⟨10.1016/j.jmmm.2019.166095⟩

We report simulation results of skyrmions on fluctuating 2D lattices, where the vertices ${\bf r}_i (\in {\bf R}^3)$ are treated as a dynamical variable and, hence, there is no crystalline structure. On the fluctuating surfaces, an external magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaed21bf42ca16f349779ef48eca5ca3
https://hal.archives-ouvertes.fr/hal-03133525

Finsler geometry modeling of elongation of flexible materials under external electromagnetic field

Autor: Hiroshi Koibuchi

Publikováno v: Ferroelectrics. 508:144-150

We study numerically elongation phenomena of flexible materials, such as liquid crystal (LC) elastomers (or ferroelectric polymers FEP), under external electromagnetic fields using Finsler geometry (FG) model. In this model, the interaction between L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95ae5f40970e192049b61cd93f5cb69d
https://doi.org/10.1080/00150193.2017.1289765

Mathematical modeling of skyrmion shape deformation under uni-axial stresses

Autor: Sahbi El Hog, Fumitake Kato, Hiroshi Koibuchi, Hung T. Diep, V. I. Egorov

Publikováno v: Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2019, 1391, pp.012013. ⟨10.1088/1742-6596/1391/1/012013⟩

Skyrmion is a topologically stable spin texture and expected to be applied to the future computer memory. On the semiconductors such as FeGe and MnSi, the skyrmion configuration is stable in the sense that it is not strongly affected by a small varia

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92158ceebd20833c6f0c4f7342f6ecb0
https://hal.archives-ouvertes.fr/hal-03133528