[11p-N402-1~10] 11.3 Critical Current, Superconducting Power Applications

△ [11p-N402-7] Scaling Behavior of Induced Electric Field in Cuprate Superconducting Tapes During Magnetization Relaxation

〇Zeyu Wu¹, Kohei Higashikawa¹, Takanobu Kiss¹ (1.Kyushu Univ.)

Keywords:SHPM, E-J characteristic, Relaxation property

For high-temperature superconductors, magnetization relaxation phenonmenon differs from environmental conditions largely, such as the temperature, applied magnetic field, measured time and sample size. In that sense, the induced electric field, E, depends on the conditions as the same, which is critical to study the Jc properties because of the rounded electric field v.s. current density (E-J) characteristics in HTSs. In this study, we evaluated the magnetization current and electric field distributions directly by measuring the magnetic field distribution based on scanning Hall-probe microscopy. Moreover, we also study the relation between magnetization current, sample shape, n-index of E-J characteristic and E.