Correlation between core-level shift and bulk modulus in transition-metal carbides and nitrides

We have developed a computational technique for the calculation of the binding energies of the core states of atoms in the bond. We applied this technique to all elements in Ti, V, Zr, and Nb carbides and nitrides. The correlation in a form of monotonous dependence has been found between binding energies of core electrons of the constituent atoms and the bulk moduli of compounds under study.