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. 2021 Dec 7;11(62):38944–38948. doi: 10.1039/d1ra05348e

Bader analyses for the respective designs in Fig. 2. Here, 3C, 3N, 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 3C 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
a

Italics denoting the unrelaxed systems.

b

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).