Neutron diffraction studies of rare earth compound Nd7Ni3 in an external magnetic field

摘要: Abstract Neutron diffraction experiments were carried out to determine the magnetic structure of Nd7Ni3 in an external field. At 4.2 K and fields below 1.3 T is conical with a basal plane helical component having propagation vector Q=(0, 0, 1/3) c-axis ferromagnetic component. Above disappears, while remains up 2.7 T. Below 0.3 T, changes from at about 8 K. A rough (H, T) phase diagram given generally consistent results magnetization measurements.