Unconventional gap structures and the intermediate mixed state: A vortex lattice study of the noncentrosymmetric superconductor BiPd

Summary, in English

We report on neutron scattering measurements on the vortex lattice of the noncentrosymmetric superconductor BiPd. We observe the existence of the intermediate mixed state, a region where Meissner and vortex lattice phases coexist, which is a feature of low type-II superconductors. Following this, we obtain an estimate of the value of using the extended London model. Finally, we find that the temperature dependence of the vortex lattice form factor fits well to a model designed to describe singlet-triplet mixing in noncentrosymmetric superconductors, which may shed light on the question of the gap structure in BiPd.

• Author: A. S. Cameron; L. Lemberger; R. Riyat; A. T. Holmes; Y. S. Yerin; A. D. Hillier; B. Joshi; S. Ramakrishnan; J. Gavilano; C. D. Dewhurst; Edward M. Forgan; E. Blackburn
• Department/s: LU Profile Area: Light and Materials; LTH Profile Area: Photon Science and Technology; LTH Profile Area: Nanoscience and Semiconductor Technology; NanoLund: Centre for Nanoscience; Synchrotron Radiation Research
• Publishing year: 2025-03-13
• Language: English
• Publication/Series: Physical Review B
• Volume: 111
• Issue: 9
• Links: http://dx.doi.org/10.1103/PhysRevB.111.094514
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Condensed Matter Physics (including Material Physics, Nano Physics)
• Keywords: superconductivity; vortex lattice; neutron scattering
• Status: Published
• ISBN/ISSN/Other: ISSN: 2469-9950