- Angular variation of the magnetoresistance of the superconducting ferromagnet UCoGe
- Physical Review B
- Volume | Issue number
- 89 | 21
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Van der Waals-Zeeman Institute (WZI)
We report a magnetoresistance study of the superconducting ferromagnet UCoGe. The data, taken on single-crystalline samples, show a pronounced structure at B∗=8.5 T for a field applied along the ordered moment m0. Angle-dependent measurements reveal that this field-induced phenomenon has an uniaxial anisotropy. Magnetoresistance measurements under pressure show a rapid increase of B∗ to 12.8 T at 1.0 GPa. We discuss B∗ in terms of a field-induced polarization change. Upper critical field measurements corroborate the unusual S-shaped Bc2(T) curve for a field along the b axis of the orthorhombic unit cell.
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