Browsing Exact and Earth Sciences by Subject "Compostos de urânio"
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The S=1 underscreened anderson lattice model for uranium compounds
(2011) [Journal article]Magnetic properties of uranium and neptunium compounds showing coexistence of the Kondo e®ect and ferromagnetic order are investigated within the degenerate Anderson Lattice Hamiltonian, describing a 5f2 electronic ... -
Underscreened Kondo lattice model applied to heavy fermion uranium compounds
(2007) [Journal article]We present theoretical results for the underscreened Kondo lattice model with localized S=1 spins coupled to a conduction band through a Kondo coupling, JK, and interacting among them ferromagnetically. We use a fermionic ... -
Unfolding of antiferromagnetic phases and multicritical points in a two-orbital model for uranium compounds under pressure and magnetic field
(2020) [Journal article]We investigate the occurrence of multicritical points under pressure and magnetic field in a model that describes two 5 f bands (of either α or β characters), which hybridize with a single itinerant conduction band. The 5 ...