Theory of local magnetic moments in transition metals
- 1 December 1981
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 11 (12) , 2645-2662
- https://doi.org/10.1088/0305-4608/11/12/015
Abstract
The authors consider whether a state of disordered local moments (DLM) can exist in an itinerant magnetic metal above Tc. They develop a criterion Il(EF)>1 for the non-magnetic state to be unstable with respect to the formation of DLM. This criterion is more easily satisfied than the Stoner criterion for ferromagnetism. In(EF)>1, near the centre of a tight-binding band and less easily satisfied near the band edges. They report calculations on tight-binding d bands of 3d transition metals by means of the recursion method. These suggest that BCC Mn and Fe do possess a DLM state, whilst Cr, FCC Mn and Ni do not. They present a method of calculation of the real part of the Green function by the recursion method.Keywords
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