Imaging non-collinear antiferromagnetic textures via single spin relaxometry

Manipulating Topological States by Imprinting Non-Collinear Spin Textures

Topological magnetic states, such as chiral skyrmions, are of great scientific interest and show huge potential for novel spintronics applications, provided their topological charges can be fully controlled. So far skyrmionic textures have been observed in noncentrosymmetric crystalline materials with low symmetry and at low temperatures. We propose theoretically and demonstrate experimentally ...

Non Collinear Moment in Single Domain Antiferromagnetic Manganese-copper

Diffuse neutron scattering measurements incorporating polarisation analysis have been made on a single domain single crystal of MnCu 90 at. % Mn at 5 K. The atoms are strongly clustered and the long range part of the magnetic defect is transverse to the antiferromagnetic direction. The face centred tetragonal form of manganese which can be stabilised at room temperature by the addition of small...

Investigation of non-collinear spin states with scanning tunneling microscopy.

Most ferromagnetic and antiferromagnetic substances show a simple collinear arrangement of the local spins. Under certain circumstances, however, the spin configuration is non-collinear. Scanning tunneling microscopy with its potential atomic resolution is an ideal tool for investigating these complex spin structures. Non-collinearity can be due to topological frustration of the exchange intera...

Non-collinear Spin Valve Effect in Ferromagnetic Semiconductor Trilayers

Abstract We report the observation of the spin valve effect in (Ga,Mn)As/p-GaAs/(Ga,Mn)As trilayer devices. Magnetoresistance measurements carried out in the current in plane geometry reveal positive magnetoresistance peaks when the two ferromagnetic layers are magnetized orthogonal to each other. Measurements carried out for different post-growth annealing conditions and spacer layer thickness...

Field-Induced Disorder Point in Non-Collinear Ising Spin Chains