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  • PACS. 71.27.+a Strongly correlated electron systems; heavy fermions - 75.10.Lp Band and itinerant models - 75.30.Kz Magnetic phase boundaries  (1)
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    Electronic Resource
    Electronic Resource
    Microscopic conditions favoring itinerant ferromagnetism: Hund's rule coupling and orbital degeneracy (1998)
    Springer
    The European physical journal 5 (1998), S. 473-478 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 71.27.+a Strongly correlated electron systems; heavy fermions - 75.10.Lp Band and itinerant models - 75.30.Kz Magnetic phase boundaries
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The importance of Hund's rule coupling for the stabilization of itinerant ferromagnetism is investigated within a two-band Hubbard model. The magnetic phase diagram is calculated by finite-temperature quantum Monte-Carlo simulations within the dynamical mean-field theory. Ferromagnetism is found in a broad range of electron fillings whereas antiferromagnetism exists only near half filling. The possibility of orbital ordering at quarter filling is also analyzed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050468
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