Searching for an unexplained vortex lattice rotation in the non-centrosymmetric superconductor Nb 0.18 Re 0.82
We propose performing small angle neutron scattering (SANS) measurements of the magnetic vortex lattice (VL) in a single crystal sample of the non-centrosymmetric (NCS) superconductor Nb0.18Re0.82. We have observed, in a previous experiment, an unexplained rotation of the VL in another NCS superconductor Ru7B3, which is shown in Fig. 1. This rotation, driven by changing magnetic field below Tc, is not connected with any structure transition of the VL and to our knowledge has not been seen before despite a significant body of research on the VL in a multitude of systems. Further, it cannot be explained by any of the prevailing theories of the VL, and we suspect that it is connected to the NCS nature of the system. It is therefore imperative that we search for this in another NCS superconductor. We have a single crystal sample of Nb0.18Re0.82, which has produced a SANS signal from the vortex lattice in a previous experiment [1], which would therefore provide an ideal system to search for this rotation.
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CAMERON Alistair; BALAKRISHNAN Geetha; HONECKER Dirk; Dmytro Inosov; ONYKIIENKO Yevhen; PAUL Donald Mckenzie; SMIDMAN Michael and Yuliia Tymoshenko. (2018). Searching for an unexplained vortex lattice rotation in the non-centrosymmetric superconductor Nb 0.18 Re 0.82. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-465
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