TY - JOUR
T1 - Unusual magnetic interactions in compounds with the ThMn12 structure
AU - Paixao, J.A.
AU - Langridge, S.
AU - Sørensen, S.Å.
AU - Lebech, B.
AU - Goncalves, A.P.
AU - Lander, G.H.
AU - Brown, P.J.
AU - Burlet, P.
AU - Talik, E.
PY - 1997
Y1 - 1997
N2 - Neutron diffraction experiments have been performed on single crystals of MFe4Al8 where M = Y, Lu, Dy and U. All compounds hare the ThMn12 bet crystal structure with Fe and Al atoms on separate sites. The Fe sublattice order antiferromagnetically above 100 K with a wave vector (epsilon, epsilon 0), where epsilon = 0.229 for Y and Lu and 0.133 for Dy. For UFe4Al8 epsilon = 0 and the U atom is in position of zero-molecular field from the surrounding Fe atoms. In an applied magnetic field parallel to the easy axis, the U atoms align with the field, but the Fe sublattice has a + - + - antiferromagnetic configuration with moments almost perpendicular to the applied field.
AB - Neutron diffraction experiments have been performed on single crystals of MFe4Al8 where M = Y, Lu, Dy and U. All compounds hare the ThMn12 bet crystal structure with Fe and Al atoms on separate sites. The Fe sublattice order antiferromagnetically above 100 K with a wave vector (epsilon, epsilon 0), where epsilon = 0.229 for Y and Lu and 0.133 for Dy. For UFe4Al8 epsilon = 0 and the U atom is in position of zero-molecular field from the surrounding Fe atoms. In an applied magnetic field parallel to the easy axis, the U atoms align with the field, but the Fe sublattice has a + - + - antiferromagnetic configuration with moments almost perpendicular to the applied field.
KW - Nye funktionelle materialer
U2 - 10.1016/S0921-4526(96)01211-2
DO - 10.1016/S0921-4526(96)01211-2
M3 - Journal article
SN - 0921-4526
VL - 234/236
SP - 614
EP - 616
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -