Skyrmions and multisublattice helical states in a frustrated chiral magnet

H. Y. Yuan, Olena Gomonay & Mathias Kläui
We investigate the existence and stability of skyrmions in a frustrated chiral ferromagnet by considering the competition between ferromagnetic (FM) nearest-neighbour (NN) interaction (J1) and antiferromagnetic (AFM) next-nearest-neighbour (NNN) interaction (J2). Contrary to the general wisdom that long-range ferromagnetic order is not energy preferable under frustration, the skyrmion lattice not only exists but is even stable for a large field range when J2≤J1 compared with frustration-free systems. We defend that the enlargement of stability window...
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