Chiral Effects on the Vortex Lattice in UPt3
The heavy fermion material UPt3 may justly be considered a paradigm for unconventional superconductivity and it remains the best established case of a a bulk, odd-parity, spin triplet superconductor. However, key questions remain unanswered concerning the order parameter of UPt3 in the three different superconducting phases. Here we focus on the vortex lattice (VL) in the so-called B-phase (low-temperature/low-field) and how this will be affected by a possible broken time-reversal symmetry. Our recent SANS measurements show a clear indication of a chiral effect on the VL in the B-phase that depends sensitively on the field/temperature history. We propose to continue these measurements and definitively establish the precise connections between the VL structure and a chiral state.
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M. R. Eskildsen; AVERS Keenan; CUBITT Robert; DEWHURST Charles; Allan Leishman and WHITE Jonathan. (2019). Chiral Effects on the Vortex Lattice in UPt3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-467
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