A5022657364- Rare-earth and actinide compounds
- Iron-based superconductors research
- Advanced Condensed Matter Physics
- High-pressure geophysics and materials
- Topological Materials and Phenomena
- Physics of Superconductivity and Magnetism
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2023-2024
Laboratoire National des Champs Magnétiques Intenses
2024
Université Grenoble Alpes
2023-2024
Centre National de la Recherche Scientifique
2024
Institut polytechnique de Grenoble
2023-2024
CEA Grenoble
2023-2024
The recently discovered superconductor UTe$_2$, with a T$_c$ between 1.5~K and 2~K, is attracting much attention due to strong suspicion of spin-triplet topological superconductivity. Its properties under magnetic field are also remarkable, field-reinforced field-induced superconducting phases. Here, we report the first complete thermodynamic determination phase diagram for fields applied along three crystallographic directions. Measurements were performed up 36~T hard magnetisation $b$~axis...
The electrical resistivity of the unconventional superconductor ${\mathrm{UTe}}_{2}$ shows very anisotropic behavior in normal state depending on current direction. In this paper we show that maximum ${\ensuremath{\rho}}_{c}$ for applied along $c$ axis at ${T}_{{\ensuremath{\rho}}_{c}}^{\mathrm{max}}\ensuremath{\approx}14.75$ K follows minimum thermal expansion ${T}_{\ensuremath{\alpha}}^{★}$ $b$ axis. Under a magnetic field axis, ${T}_{{\ensuremath{\rho}}_{c}}^{\mathrm{max}}$ can be tracked...
We report the magnetoresistance of high-quality single crystals UTe 2 with T c = 2.1 K in high magnetic fields up to 36 T, field direction between b and c-axes.From angular dependence upper critical H c2 , we found that field-reentrant superconducting phase near ∥ b-axis extends a angle (θ ∼ 24 deg) from c-axis, where another begins appear above metamagnetic transition field, m .Our results suggest superconductivity below is closely related when tilted toward c-axis.Superconductivity appears...
We report the magnetoresistance of high-quality single crystals UTe2 with Tc=2.1K in high magnetic fields up to 36T, field direction between b and c-axes. From angular dependence upper critical Hc2, we found that field-reentrant superconducting phase near H // b-axis extends a angle (24 deg) from c-axis, where another begins appear above metamagnetic transition field, Hm. Our results suggest superconductivity below Hm is closely related when tilted toward c-axis. Superconductivity appears be...