Measurements of the magnetic vortex lattice in the noncentrosymmetric superconductor Ru7B3
We propose performing small angle neutron scattering (SANS) measurements of the magnetic vortex lattice (VL) in a single crystal of the non-centrosymmetric (NCS) superconductor Ru7B3. NCS superconductors are of significant interest to the condensed matter community, as the crystal structure breaks inversion symmetry, leading to novel superconducting states with unusual properties. These have been predicted to have a significant effect on the VL within these materials, with the s+p-wave order parameter predicted for NCS leading to a strong anisotropy in the electronic states around the vortex. We have a large single crystal of Ru7B3, prepared with the enriched 11B isotope, on which we performed SANS measurements using D33 last year. The single-domain VL was seen to rotate with decreasing field, which has not been seen in any other superconducting material or predicted by any of the prevailing theories of the VL structure. We propose to fully map out this VL rotation with field.
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CAMERON Alistair; BALAKRISHNAN Geetha; M. Ciomaga Hatnean; CUBITT Robert; Dmytro Inosov; ONYKIIENKO Yevhen; PAUL Donald Mckenzie; SUKHANOV Aleksandr and Yuliia Tymoshenko. (2016). Measurements of the magnetic vortex lattice in the noncentrosymmetric superconductor Ru7B3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-416
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