The Fermi surface of

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Abstract
The de Haas - van Alphen spectrum of is calculated and compared with the experimental spectrum for continuously varying directions of the magnetic field. The local density approximation to spin-density functional theory is used for the self-consistent calculations treating the U 5f electrons as itinerant and including spin - orbit coupling. The amount of f angular momentum character is obtained and exhibited graphically for each sheet of the Fermi surface. The band-decomposed spin susceptibility, , is calculated for the states at the Fermi surface and the anisotropy of is discussed.