Table 1 The band gap, diameter, Curie temperature TC, strain energy Estrain and radial electric field Er inward along the radius for zigzag and armchair nanotubes
From: Ferromagnetic semiconductor nanotubes with room Curie temperatures
Structure | Zigzag | Armchair | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Material | Perimeter | Diameter | Gap | TC (K) | Estrain | Er | Diameter | Gap | TC (K) | Estrain | Er |
(MX2 units) | (nm) | (eV) | (eV/atom) | (eV/Å) | (nm) | (eV) | (eV/atom) | (eV/Å) | |||
CrS2 | 12 | 0.92 | 0 | 233 | 0.26 | 0.72 | 1.38 | 0 | 286 | 0.07 | 0.09 |
14 | 1.05 | 0.21 | 213 | 0.11 | 0.08 | 1.58 | 299 | 0.05 | 0.13 | ||
16 | 1.14 | 0 | 268 | 0.09 | 0.28 | 1.71 | 329 | 0.02 | 0.25 | ||
18 | 1.28 | 0.53* | 364 | 0.05 | 0.20 | 1.88 | 275 | 0.02 | 0.14 | ||
20 | 1.34 | 0 | 273 | 0.03 | 0.24 | 2.13 | 232 | 0.02 | 0.01 | ||
22 | 1.46 | 280 | 0.03 | 0.13 | 2.34 | 309 | 0.02 | 0.00 | |||
24 | 1.51 | 223 | 0.01 | 0.23 | 2.52 | 247 | 0.01 | 0.00 | |||
CrTe2 | 12 | 1.08 | 0 | 322 | 0.17 | 0.32 | 1.58 | 0 | 375 | 0.11 | 0.16 |
14 | 1.20 | 437 | 0.14 | 0.27 | 1.78 | 441 | 0.07 | 0.16 | |||
16 | 1.31 | 432 | 0.13 | 0.23 | 1.99 | 323 | 0.04 | 0.15 | |||
18 | 1.45 | 0.16* | 431 | 0.09 | 0.10 | 2.21 | 318 | 0.02 | 0.13 | ||
20 | 1.56 | 0 | 467 | 0.06 | 0.10 | 2.40 | 310 | 0.02 | 0.11 | ||
22 | 1.66 | 479 | 0.05 | 0.11 | 2.61 | 291 | 0.01 | 0.11 | |||
24 | 1.77 | 478 | 0.04 | 0.12 | 2.80 | 255 | 0.01 | 0.11 | |||
VSe2 | 12 | 1.07 | 0.51 | 44 | 0.27 | 0.50 | 1.46 | 0.11 | 196 | 0.05 | 0.22 |
14 | 1.64 | 0.17 | 78 | 0.23 | 0.36 | 1.64 | 0 | 209 | 0.01 | 0.21 | |
16 | 1.24 | 0.68 | 107 | 0.08 | 0.15 | 1.92 | 21 | 0.03 | 0.01 | ||
18 | 1.34 | 0 | 200 | 0.05 | 0.10 | 2.12 | 25 | 0.01 | 0.01 | ||
20 | 1.46 | 128 | 0.04 | 0.14 | 2.32 | 18 | 0.00 | 0.02 | |||
22 | 1.57 | 133 | 0.00 | 0.13 | 2.53 | 15 | −0.01 | 0.00 | |||
24 | 1.69 | 0.15 | 141 | 0.01 | 0.07 | 2.73 | 114 (TN) | −0.01 | 0.00 | ||
