Longitudinal spin fluctuations driving field-reinforced superconductivity in UTe${}_2$

Yo Tokunaga, Hironori Sakai, Shinsaku Kambe +10

Our measurements of ${}^{125}$Te NMR relaxations reveal an enhancement of electronic spin fluctuations above ${\mu }_0{H}^{\ast }\sim 15$ T, leading to their divergence in the vicinity of the meta…