Angular variation of the magnetoresistance of the superconducting ferromagnet UCoGe
T. V. Bay, A. M. Nikitin, T. Naka, A. McCollam, Y. K. Huang, A. de Visser
DOI 10.1103/PhysRevB.89.214512 · Physical Review B
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Abstract
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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UCoGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.6 | Pressure not reported | onset |
| UCoGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.5 | Pressure not reported | midpoint |
| UGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| URhGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UIr Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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