Some regularities in the behaviour of the magnetic, electrokinetic, and superconducting properties of transition metal monocarbide and mononitride solid solutions

The Influence of Inculcational and Substitutional Impurities on the Electronic Properties of Transition Metal Refractory Carbides and Nitrides and Their Solid Solutions

“…As was suggested in [49], these tendencies are connected with nonlinear changes in the parameters of the SS electronic structure. In particular, the minimum in the susceptibility x ( T ) curve at z 20 mol% TIN in titanium carbonitrides [46,49] correlates with the minimum in the N(E,) versus VEC curve, which could be explained using the results of the calculations of [SO] and assuming that the rigid band model is valid.…”

“…In particular, the minimum in the susceptibility x ( T ) curve at z 20 mol% TIN in titanium carbonitrides [46,49] correlates with the minimum in the N(E,) versus VEC curve, which could be explained using the results of the calculations of [SO] and assuming that the rigid band model is valid. The validity of this model was tested in band structure calculations of TiC,N, -x and NbC,N, --x using the LMTO method [44, 451 where the concentration dependence of N(E,), Ecoh, melting energy, and number of valence electrons (inside the atomic spheres) was determined for these SS.…”

“…The changes in N(E,) can be compared [IOO] to the concentration dependence of some electric and magnetic properties of the alloys. For example, the data on the magnetic susceptibility x for SS NbC-NbN, Zro,,Nbo,,C,N1 -,, NbN-ZrC [49] show that x decreases monotonically with the growth of carbon content. Then, according to these calculations, one might expect an increase in x when NbN is doped with molybdenum.…”