Polarized Neutron Reflectivity study of in-plane spin vortices formed in 2D rare-earth magnetic systems

Professor Milan Sanyal, Dr Andrew Caruana, Professor Abhijit Chakrabarti & Dr Mrinmay Kumar Mukhopadhyay
Spin vortices are most appealing characteristics of two dimensional 2D easy-plane spin systems which are receiving recent attention for their fundamental properties and possible technological applications involving nanostructured magnetic materials. Spin vortices are in-plane circular spinarrangements which may have core spins directing out-of plane to reduce exchange energy. A spin vortex exists together with its counterpart, known as anti-vortex, as a pair below a characteristic temperature, known as the Berezinskii-Kosterlitz-Thouless (BKT) transition. . Neutron scattering...
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