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| Authors | K. Prokes, P.F. de Chatel, E.H. Bruck, F.R. de Boer, K. Ayuel, H. Nakotte, V. Sechovsky | | Title | Canted ferromagnetic structure of UNiGe in high magnetic fields |
| Journal | Physical Review B |
| Volume | 65 |
| Year | 2002 |
| Issue | 14 |
| Pages | 144429- |
| ISSN | 10980121 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Van der Waals-Zeeman Institute (WZI) |
| Keywords | UNiGe; high magnetic fields; Canted ferromagnetic structure |
| Abstract | 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 1.1660.04 mB exhibit a ferromagnetic c axis component of
1.0460.04 mB and an antiferromagnetic a axis component of 0.5260.05 mB . 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. |
| Document type | Article |
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