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Extremely Large and Anisotropic Upper Critical Field and the Ferromagnetic Instability in UCoGe
Dai Aoki, Tatsuma D. Matsuda, Valentin Taufour +3
Magnetoresistivity measurements with fine tuning of the field direction on high quality single crystals of the ferromagnetic superconductor UCoGe show anomalous anisotropy of the u…
Suppression of hidden order in URu2Si2 under pressure and restoration in magnetic field
E Hassinger, D Aoki, F Bourdarot +5
We describe here recent inelastic neutron scattering experiments on the heavy fermion compound URu2Si2 realized in order to clarify the nature of the hidden order (HO) phase which…
Pressure-phase diagram of UCoGe by ac-susceptibility and resistivity measurements
E. Hassinger, D. Aoki, G. Knebel +1
UCoGe is one of the few compounds showing the coexistence of ferromagnetism and superconductivity at ambient pressure. With T_Curie = 3 K and T_SC = 0.6 K it is near a quantum phas…
Anisotropic inelastic scattering and its interplay with superconductivity in URuSi
Zengwei Zhu, Elena Hassinger, Zhu'an Xu +3
In contrast to almost all anisotropic superconductors, the upper critical field of URuSi is larger when the field is oriented along the less conducting direction. We pr…
Field Reentrance of the Hidden Order State of URu2Si2 under Pressure
Dai Aoki, Frederic Bourdarot, Elena Hassinger +5
Combination of neutron scattering and thermal expansion measurements under pressure shows that the so-called hidden order phase of URu2Si2 reenters in magnetic field when antiferro…