The temperature dependence of low-energy magnetic excitations in the spin-triplet superconductor UTe₂ was measured via inelastic neutron scattering. These excitations, peaking at 4 meV and following Brillouin zone edges near the *b*-axis, exhibit paramagnetic structural symmetry and track the heavy fermion bulk magnetic susceptibility. Superconductivity onset noticeably alters these excitations, suggesting electronic structure modification.
Publisher
npj Quantum Materials
Published On
Apr 05, 2022
Authors
Nicholas P. Butch, Sheng Ran, Shanta R. Saha, Paul M. Neves, Mark P. Zic, Johnpierre Paglione, Sergiy Gladchenko, Qiang Ye, Jose A. Rodriguez-Rivera
Tags
superconductivity
magnetic excitations
UTe₂
inelastic neutron scattering
heavy fermion
electronic structure
bulk magnetic susceptibility
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