2006/02/28 by J. P. Rodriguez, M. P. Maley
Engineering · Physics and Astronomy · #Physics of Superconductivity and Magnetism #Superconducting Materials and Applications #Superconductivity in MgB2 and Alloys #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.73.094502
published as Phys. Rev. B 73, 094502 (2006) · 10 pages, 3 figures, 2 tables. To appear in Physical Review B
arxiv created 2006/02/28 · openalex publication_date 2006/03/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The critical current density shown by a superconductor at the extreme type-II limit is predicted to follow a 1∕√(B) power law with external magnetic field B if the vortex lattice is weakly pinned by material line defects. It acquires an additional inverse dependence with thickness along the line direction once pinning of the interstitial vortex lines by material point defects is included. Moderate quantitative agreement with the critical current density shown by second-generation wires of high-temperature superconductors in kG magnetic fields is achieved at liquid-nitrogen temperature.