期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 35, 期 42, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-648X/ace576
关键词
noncentrosymmetric; superconductivity; vortex lattice
In previous studies, the noncentrosymmetric superconductor Ru7B3 has shown unusual behavior in its vortex lattice, with vortices dissociating from the crystal lattice and exhibiting a complex field-history dependence. In this study, the vortex lattice form factor of Ru7B3 was investigated to check for deviations from established models. The results suggest that the anisotropic London model is a good fit, indicating minimal alterations to the vortex structure due to broken inversion symmetry. Penetration depth and coherence length were also extracted from the data.
The noncentrosymmetric superconductor Ru7B3 has in previous studies demonstrated remarkably unusual behaviour in its vortex lattice (VL), where the nearest neighbour directions of the vortices dissociate from the crystal lattice and instead show a complex field-history dependence, and the VL rotates as the field is changed. In this study, we look at the VL form factor of Ru7B3 during this field-history dependence, to check for deviations from established models, such as the London model. We find that the data is well described by the anisotropic London model, which is in accordance with theoretical predictions that the alterations to the structure of the vortices due to broken inversion symmetry should be small. From this, we also extract values for the penetration depth and coherence length.
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