Field-induced vortex-like textures as a probe of the critical line in reentrant spin glasses

We study the evolution of the low-temperature field-induced magnetic defects observed under an applied magnetic field in a series of frustrated amorphous ferromagnets (Fe₁_-_xMn_x)₇₅P₁₆B₃Al₃ (“a-Fe₁_-_xMn_x”)....

Spin textures induced by quenched disorder in a reentrant spin glass: Vortices versus "frustrated" skyrmions

Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices

Magnetic skyrmions are nanosized topologically protected spin textures with particlelike properties. They can form lattices perpendicular to the magnetic field, and the orientation of these skyrmion lattices with respect to the crystallographic lattice is governed by spin-orbit coupling. By performing small-angle neutron scattering measurements,...