Spin wave spectrum in superantiferromagnetic TbCu2 nanoparticles
Superantiferromagnetic ensembles of TbCu2 magnetic nanoparticles constitute a case example of supermagnetic states, which effectively constitute barely unexplored magnetic arrangements. These TbCu2 nanoparticle ensembles present an antiferromagnetic core and a disordered moment shell due to the size reduction and the microstrain increase. In these ensembles, a pristine size-dependence of Neel and freezing transitions is found. Inevitably modifications of the spin wave spectrum are expected and very little is known regarding this fundamental issue. It is our aim to extract the dispersion curves. Clearly, the understanding of magnetic behaviour among nanoparticles is key to achieve new deliveries in present technological output (Horizon2020), especially in biomedicine and environmental conservation.
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L Fernandez Barquin; BLANCO RODRIGUEZ Jesus Angel; DE LA FUENTE RODRIGUEZ Maria; FAK Bjorn; KAUL S. N. and MICHELS Andreas. (2015). Spin wave spectrum in superantiferromagnetic TbCu2 nanoparticles. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-05-626
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