8 papers
Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization
Sven Bjarke Gudnason, Yuki Amari, Muneto Nitta
Absorption of an isolated bulk magnetic skyrmion into an empty domain wall in a chiral ferromagnetic system is studied using the Landau-Lifshitz-Gilbert equation with and without t…
Topological Charge Asymmetry in a Skyrmion-Fermion Coupled System
Yuki Amari, Nobuyuki Sawado, Shintaro Yamamoto
Topology plays a central role in classifying solitonic configurations in field theories, providing robustness and a nonperturbative label, the so-called topological charge . In…
Skyrmion with Fermion Backreaction
Yuki Amari, Nobuyuki Sawado, Shintaro Yamamoto
When fermions interact with a topological soliton, they localize on the soliton. In studies of such systems, solitons are often treated as fixed background fields, and the backreac…
Creation of domain-wall Skyrmions in chiral magnets
Sven Bjarke Gudnason, Yuki Amari, Muneto Nitta
We study the capture of a magnetic Skyrmion into a domain wall (DW) structure in chiral magnets and find that in the respective ground states of the DW and the Skyrmion, they repel…
Phase Boundary of Nuclear Matter in Magnetic Field
Yuki Amari, Muneto Nitta, Zebin Qiu
Nuclear matter with a strong magnetic field is prevalent inside neutron stars and heavy-ion collisions. In a sufficiently large magnetic field the ground state is either a chiral s…
Skyrmion crystal phase on a magnetic domain wall in chiral magnets
Yuki Amari, Muneto Nitta
We study a magnetic domain wall in the ferromagnetic phase in chiral magnets in two dimensions with an in-plane easy-axis anisotropy and an out-of-plane Zeeman magnetic field, and…