4 citations · 6 across the 8 of their papers we have counts for
9 papers
Skin phase transition of a skyrmion in a ferromagnetic superfluid
Wooyoung Yun, Se Kwon Kim, Hiromitsu Takeuchi
Compared with a scalar Bose-Einstein condensate (BEC), a spinor BEC supports richer phenomena because of its internal spin degrees of freedom, including topological solitons such a…
Subcritical bifurcation and on-off bistability in ballistic polariton condensates
Oleg I. Utesov, Soohong Choi, Pavel Kozhevin +11
Dynamics of exciton-polariton condensates under continuous-wave incoherent Gaussian optical pumping is considered. It is shown that the conventional supercritical Stuart-Landau pic…
Consistent Evaluation of Operators Involving the Position Operator in the Bloch Representation: Application to the Orbital Moment
Daehyeon An, Junmo Jeon, Se Kwon Kim
The position operator plays a central role in condensed-matter observables such as velocity, orbital moment, and electric polarization. In solid-state physics, the evaluation of op…
Frustration of harmonic and solitonic helimagnetism on the body-centered tetragonal lattice of GdAlSi
Ryota Nakano, Rinsuke Yamada, Oleg I. Utesov +9
The triangular lattice antiferromagnet (TLAF) with nearest-neighbor exchange interaction is a model platform in the field of frustrated magnetism. Here, anharmonic (`up-up-down') a…
Quantum Scalar Spin Chirality in Coplanar Kagome Antiferromagnets
Nanse Esaki, Gyungchoon Go, Se Kwon Kim
We theoretically demonstrate that quantum fluctuations inherent to antiferromagnets can generate scalar spin chirality at zero temperature even in coplanar ordered magnets. In a ka…
Effective Field Theory of a Noncollinear Altermagnet
Seungho Lee, Se Kwon Kim
We derive an effective field theory for a noncollinear altermagnet and magnons on top of the noncollinear ground state from an altermagnetic Heisenberg model. We obtain the ground-…
Current-driven dynamics of antiferromagnetic domain-wall skyrmions
Wooyon Kim, Jun Seok Seo, Se Kwon Kim
Domain-wall skyrmions are magnetic solitons embedded in a domain wall that are topologically equivalent to skyrmions. Here, we theoretically study antiferromagnetic domain-wall sky…
Stable singular fractional skyrmion spin texture from the quantum Kelvin-Helmholtz instability
SeungJung Huh, Wooyoung Yun, Gabin Yun +7
Topology profoundly influences diverse fields of science, providing a powerful framework for classifying phases of matter and predicting nontrivial excitations, such as solitons, v…
Domain Wall Networks as Skyrmion Crystals in Chiral Magnets
Seungho Lee, Toshiaki Fujimori, Muneto Nitta +1
We theoretically investigate the ground states of a chiral magnet with a square anisotropy and show that it supports domain wall networks as stable ground states. A domain wall jun…