Table 3 Relative total energies (per unit containing one hydrogen atom) of different magnetic states to the energetically most stable states of one-side semihydrogenated group-IV monolayers with chair configuration and Curie temperatures (T C ) of ferromagnetic states. For each material (in each row), the lowest value among total energies of NM, FM, and AFM states is set to 0 meV
NM (meV) | FM (meV) | AFM (meV) | T C (K) | |
|---|---|---|---|---|
H-silicene | 287.8 | 0 | 9.6 | 111.9 |
121.6(c) | ||||
300(d, e) | ||||
H-germanene | 243.1 | 0 | 12.3 | 143.1 |
144.8(c) | ||||
H-SiGe | 251.3 | 0 | 8.1 | 93.4 |
110(a) | ||||
SiGe-H | 290.6 | 0 | 9.4 | 108.9 |
H-SiC | 282.0 | 0 | 29.7 | 344.7 |
340(b) | ||||
SiC-H | 251.6 | 10.6 | 0 | - |
H-GeC | 354.1 | 0 | 25.7 | 298.2 |
GeC-H | 261.9 | 0 | 4.1 | 48.0 |