69 research outputs found
Sociophysics Analysis of Multi-Group Conflicts
© 2020 by the authors. We present our research on the application of statistical physics techniques to multi-group social conflicts. We identify real conflict situations of which the characteristics correspond to the model. We offer realistic assumptions about conflict behaviors that get factored into model-generated scenarios. The scenarios can inform conflict research and strategies for conflict management. We discuss model applications to two-and three-group conflicts. We identify chaotic time evolution of mean attitudes and the occurrence of strange attractors. We examine the role that the range of interactions plays with respect to the occurrence of chaotic behavior
Finsler geometry modeling and Monte Carlo study of skyrmion shape deformation by uniaxial stress
Skyrmions in chiral magnetic materials are topologically stable and
energetically balanced spin configurations appearing under the presence of
ferromagnetic interaction (FMI) and Dzyaloshinskii-Moriya interaction (DMI).
Much of the current interest has focused on the effects of magneto-elastic
coupling on these interactions under mechanical stimuli, such as uniaxial
stresses for future applications in spintronics devices. Recent studies suggest
that skyrmion shape deformations in thin films are attributed to an anisotropy
in the coefficient of DMI, such that , which makes the
ratio anistropic, where the coefficient of FMI is
isotropic. It is also possible that while
is isotropic for to be anisotropic. In this paper, we study this
problem using a new modeling technique constructed based on Finsler geometry
(FG). Two possible FG models are examined: In the first (second) model, the FG
modeling prescription is applied to the FMI (DMI) Hamiltonian. We find that
these two different FG models' results are consistent with the reported
experimental data for skyrmion deformation. We also study responses of helical
spin orders
under lattice deformations corresponding to uniaxial extension/compression
and find a clear difference between these two models in the stripe phase,
elucidating which interaction of FMI and DMI is deformed to be anisotropic by
uniaxial stresses.Comment: 42 pages, 23 figure
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