Low-Temperature Magnetic Fluctuations Investigated by ¹²⁵Te-NMR on the Uranium-Based Superconductor UTe₂

Anomalous vortex dynamics in the spin-triplet superconductor UTe2

“…Such a trend aligns well with the fundamental behaviour of AFM coupling, which tends to diminish in the presence of magnetic fields. Furthermore, a recent NMR study highlights dominant ferromagnetic fluctuations along the a-axis [60]. While our findings suggest the dominance of Q = 0 fluctuations, further direct investigation into magnetic fluctuations with Q-resolved experiments, particularly through neutron scattering, is essential for further understanding.…”