Magnetic and Mössbauer effect measurements on the nitrides with hcp metal lattice of V, Cr, Mn and Fe are carried out as a function of composition. Hexagonal VN x and hexagonal CrM x are Pauli paramagnetic. Hexagonal MnN x shows antiferromagnetism, while both hexagonal and orthorhombic FeN x show ferromagnetism at low temperatures. In these Phases, nitrogen atoms suppress magnetic ordering in consequence of the reduction of magnetic moments. As a whole, the observed types of magnetism of hexagonal nitrides resemble those of their metals in spite of the difference in crystal structures. Type II superconductivity is found in hexagonal VN x although it is not yet conclusive.
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Mekata et al. (1972) studied this question.
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