Conditions for the spin-spiral state in itinerant magnets
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The spin-spiral (SS) type of magnetization is studied with the Hubbard model. Consideration of noncollinearity of the magnetic moments results in a phase diagram which consists of regions of the SS and paramagnetic states depending on the number of electrons and the parameter U/t (U is the Hubbard repulsion, and t is an overlap integral). A possibility of stabilization of the SS state with three nonzero components of magnetic moment is considered.
4 pages, 1 figure (presented in Moscow International Sympozium on Magnetism, 21-25 June 2008, Moscow, Russia)
4 pages, 1 figure (presented in Moscow International Sympozium on Magnetism, 21-25 June 2008, Moscow, Russia)