UNiGe adopts the orthorhombic TiNiSi-type of structure and exhibits in zero field two different antiferromagnetic structures. Both are noncollinear with significant a axis component. Magnetic measurements indicate two metamagnetic-like transitions with the field applied along the b or the c axis. Neutron diffraction studies in magnetic fields applied along the c axis reveal above the second metamagnetic-like transition a canted ferromagnetic structure. U magnetic moments of 1.16Ϯ0.04 B exhibit a ferromagnetic c axis component of 1.04Ϯ0.04 B and an antiferromagnetic a axis component of 0.52Ϯ0.05 B . Observation of such a canted ferromagnetic structure in UNiGe provides strong evidence for presence of anisotropic exchange interactions. The fact that the a axis component cannot be well aligned above the second metamagneticlike transition indicates that the antiferromagnetic interaction between the a axis components is much stronger than between the others.
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