Magnetic fluctuations in the heavy-fermion paramagnetic superconductor UTe2
Superconductivity and magnetic-field-induced superconductivity has been recently found to emerge below Tsc = 1.6-1.8 K in the paramagnetic heavy-fermion system UTe2. The upper critical field is strongly anisotropic and is near 35 T for the magnetic hard crystallographic direction b. It has been proposed that spin-triplet pairing is realised. Here, we propose to study the magnetic fluctuations, which are suspected to drive to unconventional superconductivity in UTe2, by inelastic neutron scattering. The first target will be the study of the ferromagnetic fluctuations expected to develop at low temperature. The second target will be a search for antiferromagnetic fluctuations.
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KNAFO William; AOKI Dai; BOEHM Martin; FLOUQUET Jacques; KANEKO Koji; KNEBEL Georg; LAPERTOT Gerard; RAYMOND Stephane; STEFFENS Paul and THEBAULT Tristan. (2021). Magnetic fluctuations in the heavy-fermion paramagnetic superconductor UTe2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-580
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