Oxygen annealing and superconductivity of HgBa2Ca2Cu3O8+y thin films

W. N. Kang, Sung Ik Lee, C. W. Chu

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

We studied the effects of oxygen-annealing temperature on the superconductivity of epitaxial HgBa2Ca2Cu3O8+y thin films fabricated by pulsed laser deposition. The highest transition temperature of 133 K for the films grown on (100) SrTiO3 was obtained after oxygen annealing at 340 °C for 12 h. The observed critical current density of 1.9×107 A/cm2 at 10 K, and 2.6×105 A/cm2 at 120 K in zero-field is high enough for the application of the superconducting quantum interference devices (SQUIDs) operated at 120 K. A dimensional crossover from 3D to 2D vortex states is observed from the temperature dependence of the irreversibility line.

原文English
頁(從 - 到)223-226
頁數4
期刊Physica C: Superconductivity and its applications
315
發行號3
DOIs
出版狀態Published - 1999 4月 20

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程

指紋

深入研究「Oxygen annealing and superconductivity of HgBa2Ca2Cu3O8+y thin films」主題。共同形成了獨特的指紋。

引用此