Table 1 Two-dimensional symmetry group (2SG), the number of symmetry operations (σ), and degeneracy factor (g) for the various reconstructions of InAs (001). For the c(4 × 4) heterodimers, the configuration showing the lowest surface energy for a given surface composition is in bold.
Reconstruction | 2SG | σ | \(\frac{{\boldsymbol{g}}}{{{\boldsymbol{\sigma }}}_{(1\times 1)}}\) | Reconstruction | 2SG | σ | \(\frac{{\boldsymbol{g}}}{{{\boldsymbol{\sigma }}}_{(1\times 1)}}\) |
|---|---|---|---|---|---|---|---|
α2(4 × 2) | p1 | 1 | 8 | ζa(4 × 2) | pmm | 4 | 2 |
αα3(4 × 2) | pmm | 4 | 2 | α2(2 × 4) | p1 | 1 | 8 |
β2(4 × 2) | pm | 2 | 4 | α3(2 × 4) | pmm | 4 | 2 |
β3(4 × 2) | pm | 2 | 4 | β2(2 × 4) | pm | 2 | 4 |
β3′(4 × 2) | p1 | 1 | 8 | β3(2 × 4) | pm | 2 | 4 |
ζ(4 × 2) | pmm | 4 | 2 | c(4 × 4) | cmm | 8 | 2 |
c(4 × 4) As6 | cmm | 8 | 2 | c(4 × 4) As3+In3(d) | p1 | 2 | 8 |
c(4 × 4) As5+In1(a) | p1 | 2 | 8 | c(4 × 4) As3+In3(e) | p1 | 2 | 8 |
c(4 × 4) As5+In1(b) | cm | 4 | 4 | c(4 × 4) As3+In3(f) | p1 | 2 | 8 |
c(4 × 4) As4+In2(a) | p2 | 4 | 4 | c(4 × 4) As2+In4(a) | p2 | 4 | 4 |
c(4 × 4) As4+In2(b) | p1 | 2 | 8 | c(4 × 4) As2+In4(b) | p1 | 2 | 8 |
c(4 × 4) As4+In2(c) | cm | 4 | 4 | c(4 × 4) As2+In4(c) | cm | 4 | 4 |
c(4 × 4) As4+In2(d) | p1 | 2 | 8 | c(4 × 4) As2+In4(d) | p1 | 2 | 8 |
c(4 × 4) As4+In2(e) | cm | 4 | 4 | c(4 × 4) As2+In4(e) | cm | 4 | 4 |
c(4 × 4) As4+In2(f) | cmm | 8 | 2 | c(4 × 4) As2+In4(f) | cmm | 8 | 2 |
c(4 × 4) As3+In3(a) | cm | 4 | 4 | c(4 × 4) As1+In5(a) | p1 | 2 | 8 |
c(4 × 4) As3+In3(b) | p1 | 2 | 8 | c(4 × 4) As1+In5(b) | cm | 4 | 4 |
c(4 × 4) As3+In3(c) | cm | 4 | 4 | c(4 × 4) In6 | cmm | 8 | 2 |
