| Material name | Lanthanum iron arsenide oxide | |||||
| Composition | LaFeAsO | |||||
| Chemical formula weight | 285.67 | |||||
| System | Tetragonal | |||||
| Temperature (ºC) | r.t. | |||||
| a (Å), b (Å), c (Å) | 4.03533(4) | 4.03533(4) | 8.74090(9) | |||
| α (deg), β (deg), γ (deg) | 90 | 90 | 90 | |||
| Unit cell vollume (Å3) | 142.336(4) | |||||
| Calculated density (g/㎝3) | 6.66 | |||||
| Z | 2 | |||||
| Space group | P4/nmm (No.129, Origin choice 2) | |||||
| atom | site | g | x/a | y/b | z/c | B (Å2) |
| La | 2c | 1 | 1/4 | 1/4 | 0.14154(5) | 0.38(2) |
| Fe | 2b | 1 | 3/4 | 1/4 | 1/2 | 0.27(4) |
| As | 2c | 1 | 1/4 | 1/4 | 0.6512(2) | 0.54(3) |
| O | 2a | 1 | 3/4 | 1/4 | 0 | 2.3(2) |
Reference: Y. Kamihara, T. Watanabe, M. Hirano, and H. Hosono, Journal of the American Chemical Society, 130, 3296 (2008).