Table 1 Single-crystal X-ray diffraction refinement on the two crystals of EuFe2As2: ‘crystal a’ (TN = 195 K), ‘crystal b’ (TN = 175 K).
From: Lattice disorder effect on magnetic ordering of iron arsenides
EuFe2As2 sample ID | ‘crystal a’ | ‘crystal b’ |
|---|---|---|
a (Å) | 3.9162 (3) | 3.9238 (4) |
c (Å) | 12.104 (3) | 12.105 (2) |
As at (0, 0, z); 4e | ||
z | 0.36256 (13) | 0.36255 (11) |
Uiso | 0.0104 (6) | 0.0109 (6) |
arsenic height, Å | 1.3624 (10) | 1.3624 (8) |
site occupancy | 0.96 (9) | 0.97 (8) |
Fe at (½, 0, ¼); 4d | ||
Uiso | 0.0106 (6) | 0.0107 (6) |
Fe‒Fe distance, Å | 2.7692 (2) | 2.7745 (3) |
site occupancy | 0.97 (9) | 0.97 (8) |
