620 citations · 3.8k across the 93 of their papers we have counts for
93 papers
Zero-field miniature skyrmion crystal and chiral domain state in breathing-kagome antiferromagnets
Kazushi Aoyama, Hikaru Kawamura
The stability of a miniature skyrmion crystal (SkX) with only a small number of spins in the magnetic unit cell has been theoretically investigated in - antiferromagnets…
Hedgehog lattice and field-induced chirality in breathing-pyrochlore Heisenberg antiferromagnets
Kazushi Aoyama, Hikaru Kawamura
We theoretically investigate a - classical Heisenberg model on the breathing pyrochlore lattice, where the nearest-neighbor (NN) exchange interactions for small and large…
Emergent skyrmion-based chiral order in zero-field Heisenberg antiferromagnets on the breathing kagome lattice
Kazushi Aoyama, Hikaru Kawamura
We show that classical Heisenberg antiferromagnets on the breathing kagome lattice can be a platform to realize a zero-field topological order of the scalar spin chirality which ca…
Skyrmion crystal in the RKKY system on the two-dimensional triangular lattice
Kota Mitsumoto, Hikaru Kawamura
We study the ordering properties of the isotropic RKKY Heisenberg model on the two-dimensional (2D) triangular lattice by extensive Monte Carlo simulations to get insights into the…
Spin dynamics simulation of the -vortex fluctuations
Yo P. Mizuta, Kazuki Aoyama, Keisuke Tomiyasu +2
Motivated by the recent quasi-elastic neutron scattering experiment, we extend the spin-dynamics simulation on the triangular-lattice Heisenberg antiferromagnet, to observe a sharp…
Observation of topological vortex fluctuations in the frustrated Heisenberg magnet NaCrO
K. Tomiyasu, Y. P. Mizuta, M. Matsuura +2
Spin fluctuations in the triangular-lattice Heisenberg antiferromagnet NaCrO are investigated by means of quasi-elastic neutron scattering with high energy resolution and wide…