Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session Q55: Skyrmions and Chiral Spin Textures in Bulk Materials I
3:00 PM–6:00 PM,
Wednesday, March 8, 2023
Room: Room 305
Sponsoring
Unit:
GMAG
Chair: Avadh Saxena, Los Alamos National Laboratory
Abstract: Q55.00002 : Engineering a Skyrmion Crystal in Ferromagnetic/Antiferromagnetic Bilayers Based on the Magnetic Frustration Mechanism
3:36 PM–3:48 PM
Presenter:
Kazuki Okigami
(The University of Tokyo)
Authors:
Kazuki Okigami
(The University of Tokyo)
Ryota Yambe
(The University of Tokyo)
Satoru Hayami
(Hokkaido University)
In the present study, we investigate another scenario to stabilize the SkX in a bilayer system without the DM interaction. Specifically, we consider a bilayer triangular lattice system with the ferromagnetic and antiferromagnetic layers. By performing the variational calculations and Monte Carlo simulations, we find that such a bilayer system can host the SkX under an external magnetic field and an easy-axis anisotropy depending on the strength of the interlayer exchange interaction. We also obtained the parameter conditions to stabilize the spiral state and the SkX with a finite-Q ordering vector in the strong coupling limit.
[1] T. Okubo et al., Phys. Rev. Lett. 108, 017206 (2012).
[2] S. Hayami et al., Phys. Rev. B 95, 224424 (2017).
[3] T. Kurumaji et al., Science 365, 914 (2019), N. D. Khanh et al., Nat. Nanotechnol. 15, 444 (2020).
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