SCES Webinar Series

Título: "Reentrant superconductivity and multiple superconducting phases in UTe₂"

Dai Aoki
(IMR, Tohoku University, CEA-Grenoble)

Resumo:

We present our recent results on the novel spin-triplet superconductor UTe₂, which might be at the verge of the ferromagnetic order. The huge upper critical field exceeding the Pauli limit is suggestive of the spin-triplet state. For the field along the b-axis, the field reentrant superconductivity is observed up to Hm~35T, at which the first order metamagnetic transition occurs. The field reentrant superconductivity in UTe₂ is similar to those observed in ferromagnetic superconductors, namely URhGe and UCoGe. Applying the pressure in UTe₂, the superconducting transition temperature splits and the multiple superconducting phase is detected as a thermodynamic response. We overview the results on UTe₂ compared to ferromagnetic superconductors, and present our perspective.

O evento será transmitido pelo Zoom:https://us02web.zoom.us/j/4396875843?pwd=T0pwTFNyTk5majkxNW1mZWhneTBBdz09 / Meeting ID: 439 687 5843 - Password: 660629   e pela página do Instituto de Física no Facebook: https://www.facebook.com/FisicaUnicamp

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