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Enhanced Spin Orbit Interaction in Actinides
Riseborough, Peter S. Calegari, Eleonir Magalhaes, Sergio
Riseborough, Peter S.
Calegari, Eleonir
Magalhaes, Sergio
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Journal article
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2022-03-01
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Physics
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http://dx.doi.org/10.1088/1742-6596/2164/1/012059
Abstract
We investigate the effect of many-body interactions on the spin-orbit coupling of anisotropic metals. We use the Underscreened Anderson Lattice Model that was proposed to describe actinide compounds. The Coulomb interactions induce off-diagonal correlations that enhance the components of the spin-orbit coupling. Modest values of the Coulomb interaction U can significantly enhance the spin-orbit coupling and effect the electronic spectrum. The enhancements are most pronounced for systems that are on the verge of magnetic instabilities. The enhancement is anisotropic in crystals with non-cubic symmetries and can lead to giant magnetic anisotropies in paramagnetic states.
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Journal of Physics: Conference Series, Vol. 2164
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