凝聚态物理
磁通钉扎
钉扎力
材料科学
磁场
薄膜
临界电流
领域(数学)
基质(水族馆)
磁通量
缩放比例
高温超导
焊剂(冶金)
超导电性
物理
纳米技术
量子力学
海洋学
地质学
冶金
数学
纯数学
几何学
作者
Abdelhalim Hafid,A. Taoufik,Abella Bouaaddi,Hassan El-Ouaddi,A. Tirbiyine,Brahim Lmouden,Mustapha Bghour,Habiba El Hamidi,Youssef Ait Ahmed
标识
DOI:10.1016/j.cjph.2017.12.025
摘要
In this paper, the critical current Jc(Θ) have been investigated as a function of magnetic-field angle Θ. Θ is the angle between the c-axis and the applied magnetic field direction. This investigation concerned three temperature values (60 K, 78 K and 81 K). The normalized pinning force fp versus the normalized magnetic field h was also studied (fp = Fp / Fpmax and h = H / Hmax). The Fp expression was determined based on the Kramer model. The studied sample was a single crystal of YBaCuO thin film deposited by the ablation laser method on the surface (100) of a SrTiO3 substrate. The results of this work show the existence of point core pinning of the normal centers in the low field regime and the occurrence of the flux creep in high field regime.
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