Bader analyses for the respective designs in Fig. 2. Here, q̄3C, q̄3N, qA and qZ are the average charges of the C(2,5,6) and N(3,4,7) atoms and the charges of the A-, and Z- atomic species. The total and absolute magnetization are in μB per unit cell.
| Systema | q̄ 3C | q̄ 3N | q A | q Z | m tot | m abs | Classb |
|---|---|---|---|---|---|---|---|
| HC4N3 | 2.80 | −2.83 | 0.00 | 0.00 | S | ||
| HC4N3BN | 2.48 | −3.14 | 3.00 | −1.19 | 0.00 | 3.65 | MS |
| HC4N3B | 2.22 | −3.09 | 2.53 | 1.00 | 2.08 | Nearly SGS | |
| HC4N3BF | 2.29 | −3.02 | 3.00 | −0.98 | 2.00 | 2.15 | BMS |
| HC4N3C | 2.18 | −2.46 | 0.60 | 2.00 | 2.12 | Nearly SGS | |
| HC4N3CO | 2.22 | −2.50 | 2.57 | −2.05 | 2.00 | 2.15 | BMS |
| HC4N3B | 1.96 | −3.01 | 3.00 | 1.08 | 1.35 | Nearly GHM* | |
| HC4N3C | 1.64 | −2.37 | 2.05 | −0.49 | 0.61 |
Italics denoting the unrelaxed systems.
S/MS/BMS/SGS/GHM: semiconductor/(bipolar) magnetic/spin gapless semiconductor/gapless half-metal *small spin-up/down DOS near EF, see Fig. 2(c and e).