%0 journal article %@ 2469-9950 %A Cameron, A.S., Yerin, Y.S., Tymoshenko, Y.V., Portnichenko, P.Y., Sukhanov, A.S., Hatnean, M.C., Paul, D.M.K., Balakrishnan, G., Cubitt, R., Heinemann, A., Inosov, D.S. %D 2019 %J Physical Review B %N 2 %P 024518 %R doi:10.1103/PhysRevB.100.024518 %T Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry %U https://doi.org/10.1103/PhysRevB.100.024518 2 %X We observe a hysteretic reorientation of the magnetic vortex lattice in the noncentrosymmetric superconductor Ru7B3, with the change in orientation driven by altering the magnetic field below Tc. Normally a vortex lattice chooses either a single or degenerate set of orientations with respect to a crystal lattice at any given field or temperature, a behavior well described by prevailing phenomenological and microscopic theories. Here, in the absence of any typical VL structural transition, we observe a continuous rotation of the vortex lattice which exhibits a pronounced hysteresis and is driven by a change in magnetic field. We propose that this rotation is related to the spontaneous magnetic fields present in the superconducting phase, which are evidenced by the observation of time-reversal symmetry breaking, and the physics of broken inversion symmetry. Finally, we develop a model from the Ginzburg-Landau approach which shows that the coupling of these to the vortex lattice orientation can result in the rotation we observe.