Abstract
To investigate the varied magnetism of Fe Laves phase compounds, the electronic structures were calculated by the LMTO method within the framework of the local-spin-density approximation. Calculating the total energy as a function of the lattice constant and the magnetic moment, the authors found that two types of ferromagnetism, antiferromagnetism and paramagnetism complete with each other in the (Sc1-xTix)Fe2 and (Zr1-xNbx)Fe2 systems. The lattice constant or the concentration x is an important factor in the appearance of these different types of magnetism. The difference between the two types of ferromagnetism is clearly seen in the density of states. One of them is weakly itinerant ferromagnetism.
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