Progress in the Study of Vortex Pinning Centers in High-Temperature Superconducting Films
Jian Zhang, Haiyan Wu, Guangzhen Zhao, Lu Han, Jun Zhang
Abstract
Since the discovery of high-temperature superconductors (HTSs), significant progress in the fabrication of HTS films has been achieved. In this review, we intend to provide an overview of recent progress in how and why superconductivity can be enhanced by introducing nanoscale vortex pinning centers. The comprehensive control of morphology, dimension, orientation and concentration of artificial pinning centers (APCs) and the principle of vortex pinning are the focus of this review. According to the existing literature, HTSs with the best superconductivity can be obtained when one-dimensional (1D) and three-dimensional (3D) nanoscale APCs are combined for vortex pinning.
Topics & Concepts
VortexPinning forceSuperconductivityCondensed matter physicsNanoscopic scaleFlux pinningMaterials scienceHigh-temperature superconductivityFabricationNanotechnologyCritical currentPhysicsMechanicsPathologyMedicineAlternative medicinePhysics of Superconductivity and MagnetismSuperconducting Materials and ApplicationsHVDC Systems and Fault Protection