5 papers
Pair emission from a relativistic domain wall in antiferromagnets
Gen Tatara, Collins Ashu Akosa, Rubén M. Otxoa de Zuazola
Magnon emission and excitation by a relativistic domain wall at a constant velocity in antiferromagnet is theoretically studied. A pair emission due to a quadratic magnon coupling…
Topological Hall signatures of magnetic hopfions
Börge Göbel, Collins Ashu Akosa, Gen Tatara +1
Magnetic hopfions are topologically protected three-dimensional solitons that are constituted by a tube which exhibits a topologically nontrivial spin texture in the cross-section…
Tuning skyrmion Hall effect via engineering of spin-orbit interaction
C. A. Akosa, H. Li, G. Tatara +1
We demonstrate that the Magnus force acting on magnetic skyrmions can be efficiently tuned via modulation of the spin-orbit interaction strength. We show that the skyrmion Hall eff…
Current-driven nucleation and propagation of antiferromagnetic skyrmionium
S. A. Obadero, Y. Yamane, C. A. Akosa +1
We present a theoretical study on nucleation and propagation of antiferromagnetic skyrmionium induced by spin current injection. A skyrmionium, also known as 2π skyrmion, is a vort…
Theory of chiral effects in magnetic textures with spin-orbit coupling
C. A. Akosa, A. Takeuchi, Z. Yuan +1
We present a theoretical study of two-dimensional spatially and temporally varying magnetic textures in the presence of spin-orbit coupling (SOC) of both the Rashba and Dresselhaus…