TABLE I: Calculated lattice constants ( a , in ˚ A), bulk modulus ( B , in GPa), and the first pressure derivative B ′ of bulk modulus for InNCo$_{3}$ and InNNi$_{3}$. Δ E FM$_{−}$PM tot (in eV per formula unit)is the difference between the total energies of ferromagnetic (FM) and paramagnetic (PM) states for InNCo$_{3}$ and InNNi$_{3}$. The available experimental values are also listed. InNCo$_{3}$ InNNi$_{3}$ LDA GGA Expt. 15 LDA GGA Expt. 15 PM FM PM FM PM/FM PM/FM a 3.744 3.753 3.835 3.855 3.8541 3.784 3.882 3.8445 B 255.78 243.06 211.29 194.17 226.91 179.93 B ′ 4.497 4.483 5.570 5.568 4.761 4.281 Δ E FM$_{−}$PM tot - -0.0397 - -0.226 0.0 0.0 11